CMBUk1 esckþIepþIm€¦ · Web viewFinnish Institute of Marine Research, (2007)....
Transcript of CMBUk1 esckþIepþIm€¦ · Web viewFinnish Institute of Marine Research, (2007)....
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CMBUk1 esckþIepþIm1>1 lMnaMedIm
sBVéf¶enHbBaðabrisßanEdlKYreGayRBYy)armÖxøaMgbMput nigEdlBMuTan;mandMeNaHRsay NamYyRbkbedayRbsiT§PaBenAeLIyenaHKW sMNl;énsarFatuKImIBulkñúgbrisßan. sarFatu TaMgenaHRtUv)aneRbIR)as;y:agTUlMTUlayTaMgenAkñúgvis½yksikmµ ]sSahkmµ nigevC¢saRsþ ehIysayPayeTAkñúgbrisßanedaysarEtkarTukdak; kareRbIR)as; kardwkCBa¢Ún nigkarcak;kak sMNl;min)anRtwmRtUv (Chak, 2009) . GIVEdlCabBaðaenaHKWenARtg;fa sarFatuBulTaMgenaH GacsßitenArab;qñaMkñúgbrisßan ehIyeFVIdMeNIrBIkEnøgmYyeTAkEnøgmYyeTot)any:aggay ehIy CalT§plbgáeRKaHfñak;dl;suxPaBmnusS nigbrisßanTaMgmUl (Nag et al., 2007). Rkum sarFatuTaMgenHRtUv)aneKsÁal;y:ag
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c,as;faCa RkumsarFatuBulsrIragÁmanesßrPaByUrGEgVg b¤ POPs (Persistent Organic Pollutants) (CEDAC, 2006). man POPs mYycMnYnCa plitpleRkAbMNg (unintended by-products)
Edl)anmkBIcMehH niglMnaMRbRBwtþkmµkñúg ]sSahkmµ (UNEP, 2005).
tamkarkMNt;rbs;kmµviFIbrisßanshRbCaCati (UNEP) mansarFatuKImI 12
xusKñaRtUv )ancat;cUleTAkñúgRkumRKYsar POPs EdlkúñgenaHman 9
RbePTCafñaMsMlab;stVl¥itsrIragÁkøer: dUcCa Gal;RDIn (aldrin) Gg;RDIn (endrin)
DIEGlRDIn (dieldrin) ededet (DDT) kørdan (chlordane) Gibtakør (heptachlor) Gicsakør:Ubg;Esn HCB (hexachlorobenzene) tuksaEpn (toxaphene) nigmIric (mirex) ehIyeRkABIenHman DIGuksIun (Dioxin) pUrr:an (Furans) nig b‘ÍepnIlb:UlIkørU: PCBs (Polychlorinated Biphenyls) (CEDAC, 2006; UNEP, 2005). ebIeTaHCa kMriténkarBulmanPaBxusKñaBI POP
mYyeTA POP mYyk¾eday EtCarYm sarFatuKImITaMgenHmanlkçN³bYny:agdUcKña (1) BYkvamanPaBBulxøaMg (2) BYkvamanesßrPaB GacsßitenAyUrrab;qñaM
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b¤rab;TsvtSkñúgbrisßanmuneBlEdlvaRtUv)anbMEbkCaTMrg;mYyEdlbgá eRKaHfñak;ticCagmun (3)
BYkvaGacehIr ehIyeFVIdMeNIr)any:agq¶aytamry³xül; nigTwk nig (4) BYkvarlay nigsßitenAkñúgCalikaxøaj;rbs;stV BiessfnikstVEdlCastVsßitenAEpñkxag elIénRcv:ak;Gahar (UNEP, 2005).
edaysarEtkñúgcMeNam POPs TaMg 12
DDT nig PCBs RtUv)aneRbIR)as;y:agTUlM TUlay nigedaysarEtvamanesßrPaBx<s; naMeGayvamanvtþmanesÞIrRKb;TIkEnøgBaseBjBiPB elak. ebIeTaHCasarFatuTaMgenHminGacekItmanedayÉkÉgkñúgFmµCatik¾eday k¾b:uEnþsUm,IEt kñúgmhasmuRTTwkkkGakTic TVIbGg;takTic nigbNþaekaHq¶aykñúgmhasmuRT)a:sIuPick¾Gac manvtþmanrbs;vaEdr (UNEP, 2005). ktþaenH)anbgáCakþIRBYy)armÖy:agxøaMgsMrab;bNþa RbeTsCaeRcIn ehIyTamTareGaymandMeNaHRsayCaskl (Chak , 2009).
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DIkør:UDIepnIlRTIkør:UeGtan (DDT)
CafñaMsMlab;stVl¥itsrIragÁkøer: EdlRtUv)aneRbIR)as; y:agxøaMgkøakñúgkarRbqaMgCamYystVmUsEdlbgáCMgWRKuncaj; CaBiesskñúgkMLúgsm½ysRgÁam elakelIkTIIBIr nigCafñaMsMlab;stVl¥itsMrab;vis½yksikmµd¾manRbsiT§PaB (Extension Toxicology
Network, 1996). DDT
RtUv)ancat;cUlkúñgRkumsarFatueRKaHfñak;xøaMgmFüm (Rkum II)
edayGgÁkarsuxPaBBiPBelak (CEDAC, 2002) . vaRtUv)ansMeyaKdMbUgbg¥s; enAqñaM 1874
b:uEnþlkçN³CafñaMsMlab;stVl¥itrbs;vaminRtUv)aneKdwgenaHeT. bnÞab;mkKImIviTU CnCatisVIs Paul Herman
Muller )anrkeXIjnUvRbsiT§PaBd¾Gs©arürbs; DDT kñúgkar RbqaMgnwgBBYkstVli¥teRcInRbePTenAqñaM 1939 (Nobel Prize.org, 2007) . edaysarEtrbk KMehIjenHehIyEdlnaMeGay DDT
RtUv)anpliteLIgsMrab;dak;lk;CafñaMsMlab;stVl¥it dMbUg edayRkumh‘unsVIs Geigy. karplit nigkareRbIR)as;rbs;sarFatuenH)anekI
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neLIgy:agxøaMg sMrab;bMerIeGayvis½yksikmµenAkñúgbNþaRbeTsCaeRcIn edaysarEtsmtßPaBd¾sMebImrbs;va kñúgkarsMlab;stVl¥it (WHO, 1979). tamBitRsbeBlEdl DDT
RtUv)aneRbIy:ageRcInenaH k¾mankarRsavRCavrbs;GñkviTüasaRsþmYycMnYn GMBI\T§iBlGviC¢manry³eBlEvgénkarplit nigeRbIR)as;hYskMritrbs;vaeTAelIsuxPaBmnusS nigbrisßanTaMgmUlEdr dUcCakarRsavRCav rbs; Robert Cushman Murphy
Edl)anGHGagfa DDT
CasarFatuBulEdlGacbMpøaj mnusS stV bkSI nigstVl¥itmanRbeyaCn_enAqñaM 1957
(Roger, 2002). b:uEnþkarelIkeLIg TaMgenaHhak;dUcCamin)anTTYlkarKaMRTenaHeT eRBaHeKenAEtmanCMenOfa DDT
Ca»sfd¾ s½kásiT§kñúgkarRbqaMgniwgCMgWRKuncaj; nigCaGavuFd¾Gs©arükñúgkarbMpøajstVl¥it edIm,IbMerIeGay vis½yksikmµrhUtmkdl;qñaM 1962
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enAeBlEdlesovePA Silent Spring rbs;CIvviTU Rachel Carson
RtUv)ane)aHBum<pSayCasaFarN³. enAkñúgesovePAenH elakRsI)anbgðajnUvPsþútag Edlfa DDT
CaGñkbgáeRKaHfñak;dl;CIvitstVéRB nigbrisßanTaMgmUldUcCakarFøak;cuHéncMnYn stVbkSI nigPaBesþIgénsMbks‘utbkSI (Lear and Linda,
1997). sñaédEdlmankarKaMRTy:ag elIslb;enH )annaMeTAdl;karhamR)amkareRbIR)as; DDT
enAshrdæGaemrickñúgqñaM 1972 (Roger,
2002). tamsißtibgðajfa enAcenøaHqñaM 1950 nig 1980 DDT RtUv)aneRbIR)as; eRcInCag 40 000
etankñúgvis½yksikmµTUTaMgBiPBelak ehIyCasrubmanRbEhlCa 2 lan etanRtUv)aneRbIR)as;TUTaMgBiPBelakcab;taMgBIqñaM 1942 (Agency for Toxic Substances and
Disease Registry, 2002) . b‘ÍepnIlb:UlIkør:UEdlRtUv)aneKsÁ
al;y:agc,as;faCa PCBs
KWCaRKYsarmYyénsmasFatu srIragÁkøer:EdlmancMnYn 209
RbePTxusKña. TMrg;énsmasFatuTaMgenH
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xusKñaedaysarGatUm kørGacCMnYsGatUmGIuRdUEsnxøH b¤TaMgGs; (cMnYnBI 1 eTA 10)
énvg;b‘ÍepnIl (vg;Edlbgáeday vg;bg;EsnBIrP¢ab;Kña) (WHO, 2003). PCBs
RtUv)aneRbIR)as;CacMbgkñúgvis½y]sSahkmµ dUcCakñúgRbB½n§benÞrkMedA nigeRbgrMGilrbs;yanynþ edaysarlkçN³niclrbs;va³ vaman esßrPaBcMeBaHmuxGasIut nig)as Fn;kMedAnigsMBaF nigmincMlgcrnþGKÁisnI (Larry, 2006; WHO, 2003) . eRkABIenH vaRtUv)aneRbIR)as;kñúgEpñkepSg²eTotCaeRcIndUcCasMPar³GKÁisnI CaBiessGMBUlePøIg Rtg;sVrm:aT½r ka)a:sIuT½r sarFatuTb;cMehH Pñak;garRbqaMgkMedArbs;bg¥Üc GaKarx<s;² m:UT½rGKÁisnIrbs;TUrTwkkk m:asIunRtCak; ]bkrN_benÞrkMedA nigm:asIunGgÁúlIelx CaedIm (UNEP
Chemicals, 1999). lkçN³Biessdac;edayELkcMeBaHPaBNWtrbs; PCBs
eFVIeGayvaRtUv)aneRbIy:ageRcInkñ7
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úg]sSahkmµplitsMPar³karBarCMrabTwk plitplfñaMlab )aøsÞic nigC½rekAs‘U lkçBN’ karplitRkdasKµankabUn nigkarGnuvtþCaeRcIneTot (Joe, 2008). PCBs
RtUv)ansMeyaKdMbUgtaMgBIqñaM 1881
ehIyplitplBaNiC¢kmµrbs;va)ancab;epþImdMbUg enAcugTsvtSqñaM 1920 KWenAqñaM 1929
edayRkumh‘unGaemriceQµaH Monsanto . tamkar)a:n; RbmaNrbs; UNEP
bgðajfaman PCBs srubRbmaNCa 1
lanetanRtUv)anplitenATUTaMg BiPBelakcab;taMgBITsvtSqñaM 1930 mk ( UNEP, 2002) . ebIeTaHbICay:agenHkþI karham R)ameTAelIkareRbIR)as; nigkarplitrbs; PCBs
RtUv)aneFVIeLIgkñúgqñaM 1979
enAshrdæ Gaemric nigedayGnusBaØa Stockholm enAqñaM 2001sþIBI POPs edaysarEtPaBBul nigesßrPaBrbs;vakñúgry³eBlyUrEdlKMramkMEhgdl;brisßan nigsuxPaBmnusSdUcCakarbgá CMgWmharIk nigplb:HBal;eTAelIRbB½n§RbsaT (UNEP,
2005) .
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sMNl; DDT nig PCBs
enAkñúgbrisßan)ankøayCaRbFanbTmYyEdl)annwgkMBugEt TTYl)annUvkarcab;GarmµN_BIsMNak;mCÄdæanGñkRsavRCavTUeTA. \Ti§BlGviC¢manrbs;BYkva mkelImnusSCati nigbrisßanBiPBelaknwgkan;EtF¶n;F¶r RbsinebIminmankarkaBar b¤dMeNaH RsayCasakleGaysmRsbNamYyenaHeT edayehtufamnusSk¾CaRbePTmYysßitenAEpñk xagelIrbs;ExSGaharsßanRbB½n§Edr. ebIeTaHCakarBitEdlfa DDT nig PCBs
rlaytickñúg Twk ehIyGacminbgáeRKaHfñak;tamry³karTTYlTanTwkk¾eday b:uEnþbrimaNrbs;vaekIneLIgCa bnþbnÞab;cab;taMgBIkarrlaytictYckñúgTwk karqøgbnþBIstVmYyeTAmYy ehIyqøgrhUtmkdl; mnusStamkarsIut²Kña (rUbPaB 1.1) (Agency
for Toxic Substances and Disease Registry, 2002) . CagenHeTAeTot karTTYlTanRtI nigstVTwkdUcCa elos RKM ex©A xüg EdlmanRbPB mkBIbwg
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b¤TenøEdlmankMhab; PCBs nig DDT
x<s;GacbgáeRKaHfñak;eRcIn eRBaHfastVTaMg enaHmanpÞúksarFatuBuleRcInRsab;eTAehIy (Chak, 2009). plb:HBal;elIsuxPaBrbs; mnusS nigstVEdlbgáeday DDT nig PCBs
rYmman PaBcuHexSayénRbB½n§RbsaT RbB½n§ PaBsaMu karbnþBUC karlUtlas;xusRbRktI Pñak;garbgáCMgWmharIk nigmuytasüúg RBmTaMgGac naMeTAdl;karbg¥ak;skmµPaBGg;sIumeTotpg (Agency for Toxic Substances and Disease Registry, 2000;
2002). KYrkt;sMKal;fa brimaN DDT nig PCBs
kñúgGaharEdlmnusS GacTTYlTanCaerogral;éf¶edayminb:HBal;dl;suxPaB (ADI: Acceptable Daily Intake)
EdlkMNt;eday WHO KW 20 μg/Kg sMrab; DDT
nig 20 ng/Kg sMrab; PCBs (Agency for Toxic Substances and Disease
Registry, 2000; 2002).
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brimaN DDT
kñúgbkSIsIuRtICaGaharman
25 ppm
DDT
kñúgRtIFM
2 ppmDDT
kñúgRtItUc 0.25 ppm
DDT
kñúgbøg;tug
0.04 ppm
DDT
kñúgTwk
0.000003 ppm
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rUbPaB 1.1: karekIneLIgénbrimaN DDT
kñúgxøÜnstVtamkarsIut²KñakñúgExSRcva:k;Gahar
edIm,ICakic©eqøIytbnwgkarKMramkMEhgbrisßan nigCMrujkarcUlrYmCasakledIm,Ikat; bnßy nigQaneTArkkarlubbM)at;TaMgRsugnUvkarplit nigkareRbIR)as;sarFatuEdlman esßrPaByUrGEgVg (POPs)
GnusBaØamYyehAfa Stockholm Convention
RtUv)anbegáIteLIg nig)ancuHhtßelxaedaybNþaRbeTsCasmaCikdMbUgcMnYn 92 kalBIéf¶TI 23 ]sPa qñaM 2001 (Ritter, et al., 1995; IPEP, 2006). kñúgenaH DDT nig PCBs
RtUv)andak;bBa©ÚlkñúgkrNI BiessedayvamanPaBBulxøaMg nigRtUv)aneRbIR)as;eRcInCageK (EPA,
2002). km<úCak¾CaRbeTshtßelxImYyrb
s;GnusBaØa Stockholm Convention Edr. tamr)ay 11
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karN_RsavRCavrbs;RksYgbrisßan)aneGaydwgfa vtþmanrbs; DDT
enAkñúgRbeTsenHman taMgBIqñaM 1950 mkemøH ebIeTaHCaRbeTsenHminEmnCaGñkplitsarFatuKImIBulTaMgenHk¾eday (MoE.,
2004a) . DDT
RtUv)annaMcUlmkkm<úCatamry³karbBa¢aTij b¤eRkamrUbPaBCaCMnYy ]btßmÖBIGtItshPaBsUevot nigRbeTsGWr:ubxagekIt GgÁkarsuxPaBBiPBelak nigkak)aT Rkhm (MoE., 2004a). tamsißti DDT
EdlnaMcUlcenøaHqñaM 1975 nig 1979 man 840 etan nigenATsvtSqñaM 1980 man 143
etan ehIyeRkABIenHmankarnaMcUlCabnþbnÞab;eTotedIm,I RbqaMgnwgCMgWRKuncaj; b:uEnþminmanTinñn½ykt;Rtac,as;las;BIbrimaNEdl)aneRbIenaHeT (World Bank
Group, 2009). cMENk PCBs
vijRtUv)aneRbIR)as;eRcInkñúgsMPar³GKÁisnI EdlnaMcUleRkayqñaM 1906
enAeBlEdlRkumh‘unGKÁisnI)araMgmkvinieyaKEpñkGKÁisnIenAkm<úCa
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(MoE., 2004b) . bEnßmelIkareRbIR)as;BIGtItkalEdlmaneRcInRsab;eTAehIyenaHnig ebIeTaHCamanc,ab;hamXat;kareRbIR)as;sarFatu POPs
b:uEnþkarGnuvtþc,ab;enHhak;dUcCaenA mankMrit eRBaHeKGacrk)anedaygaynUvfñaMksikmµdUcCa DDT Gg;RDIn nigkørdanCaedImenAelI TIpSakm<úCa (EJF, 2002) . edaysarEtehtuplTaMgenHehIy karRsavRCavBIsMNl;sarFatu POPs Biess DDT nig PCBs
kúñgbrisßanRbeTskm<úCaRtUv)aneFVIeLIgCabnþbnÞab;edayepþat eTAelIstVTwkdUcCaepSat RtI nig sb,IstV (elos xüg ex©A)
RBmTaMgdIl,ab;BIbNþabwgnigTenø sMxan;²mYycMnYn.
xüg nigex©A CastVTwkmYyRbePTEdlRbCaBlrdæExµrniymbriePaKCaTUeTAedayehtu fa vamantMélefaknigGacrk)anedaygayenAesÞIrRKb;TIkEnøgénRbeTskm<úCa. cMeBaH xüg ex©AEdldak;lk;enAelITIpSaRbeTskm
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<úCaPaKeRcIn manRbPBmkBItMbn;EdlenACitTIpSaenaH Etmþg. b:uEnþCRgukd¾FMénplitplenHKW sßitenAkñúgGagTenøemKgÁ nigbwgTenøsabrbs;km<úCa.
bwgTenøsab nigTenøemKgÁCaGagsþúkTwkePøógnigTwkCMnn;d¾FMEtmYyKt;rbs;RbeTs km<úCa. TwkTaMgenaHmanRbPBmkBIExSTwkemKgÁelI nighUrcuHBItMbn;CMuvijenaHEdlmanRbvtþi eRbIR)as;nUvsarFatuBulRbePT POPs dUcCa DDT nig PCBs CaedImBIGtItkalmk (MoE., 2004b). crnþTwkrebobenH GacbNþaleGayFatuKImIBulTaMgenHenAkkKrenAkñúgdIl,ab;)at bwg TenøBImYyqñaMeTAmYyqñaMkan;EteRcIneLIg². GVIEdlKYreGaykt;sMKal;CagenH lMhUrTwkrbs; TenøemKgÁkm<úCa nigbwgTenøsabmankarpøas;bþÚrKñaeTAvijeTAmk eBalKWTwkhUrBITenøemKgÁcUl bwgTenøsabkñúgrdUvvsSa nigRcasmkvijkñúgrdUvTwkRskEdlna
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MdIl,ab;eTACamYypgEdr. enHbBa¢ak;fa kMritCatiBulEdlmankñúgGagTwkTaMgBIrenHGacnwgmanTMnak;TMngKñaEdlKYrEtman karsikSaNamYyeFVIeLIgedIm,IeFVIkareRbobeFob BiessBinitüelIFatuKImIBuldUcCa PCBs
nig DDTs enAkúñgstVTwk (xüg ex©A CaedIm)
Edlrs;kñúgGagTwkTaMgBIrenH. BBYksib,IstV TaMgenHRtUv)ansgS½yfaGacmanpÞúk PCBs nig DDTs
RbsinebIvars;enAkñúgkEnøgEdlExSTwk manlMhUrcuHeLIgEbbenH (USEPA, 2000).
edayELkBIenH bwgeCIgÉkCabwgFmµCatimYyEdlmancMgayminq¶ayb:unµanénPaKxag t,ÚgraCFanIPñMeBjRbmaN 5
km )annwgkMBugEtedIrtYnaTICaRbPBesdækic©d¾sMxan;sMrab;RbCa BlrdæEdlrs;enACMuvijenaH (Chak, 2009) . CamYynwgépÞdICag 3400 hicta bwgenHRtUv)an eRbIsMrab;kardaMdMNaM nigkarensaTCalkçN³RKYsarpgEdr (Khov
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et al., 2007). b:uEnþbwgenH kMBugEtrgnUvkarbMBuly:agxøaMgedaykaksMNl; nigTwkkxVk;EdlhUrcak;mkedaypÞal;BITIRkug PñMeBj edayKµanqøgkat;RbB½n§cMeraHtamry³sßanIy_bUmTwksMGuyFM²BIrKW sßanIy_bwgRtEbk nigbwgTMBun rYmTaMgsMNl;BIeragcRktUcFMCag 3000
nigpÞHRbCaCnEdlenACMuvijenaHeTotpg (Kim, 2007). tamkarsikSacMnYnBIrknøgmksþIBIkarkMNt;brimaNCatiBulkñúgTwk nigdIl,ab; kEnøgTwkhUrcUl nigecjBIbwgenH)anelIkeLIgfabwgeCIgÉkkMBugEtedIrtYnaTICamCÄmNÐl eRcaHCatiKImIBul (DDT nig PCBs)
mineGaysarFatuTaMgenaHFøak;cUleTAkñúgTenø)asak; (Chak, 2009; Kim, 2007). eTaHCay:agenHkþI RbCaBlrdæEdlrs;enACMuvijbwgeCIgÉk enAEteBjniymTTYlTan niglk;dUrplensaTBiessex©A nigxügEdlRbmUl)anxN³Edl BMumankarsikSaNamYyTak;Tgnwgk
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MritCatiBul (DDTs nig PCBs) enAkñúgxüg ex©A enAtMbn;bwg enHenAeLIyeT.
edayEp¥kelIehtupldUcxagelI karsikSasþIBIkarkMNt;brimaN DDTs nig PCBs enAkñúgxüg nigex©AenAkñúgTenøemKgÁkm<úCa (extþkMBg;cam) bwgTenøsab (extþkMBg;qñaMg) nigtMbn; bwgeCIgÉkRtUv)anerobcMeLIg. 1>2 eKalbMNgénkarRsavRCav
kMNt; nigeRbobeFobbrimaN DDTs nig PCBs
kñúgex©AkñúgTenøemKgÁkm<úCa (extþkMBg; cam)
nigbwgTenøsab (extþkMBg;qñaMg) .
kMNt; nigeRbobeFobbrimaN DDTs nig PCBs
kñúgxügkñúgbwgeCIgÉkenAkEnøgepSg² Kña³ kEnøgEdlTwksMGuyhUrcUlBIRkugPñMeBj tMbn;kNaþlbwg nigTItaMgTwkhUrecjBIbwg sMedAeTATenø)asak;.
pþl;Bt’manBIkMrit DDTs nig PCBs
EdlrkeXIj (RbsinebIman)
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enAkñúgTItaMgén krNIsikSaTaMgbIkEnøg.
1>3 EdnkMNt;énkarRsavRCavPaKsMNakex©A
nigxügEdlykmkBIbwgTenøsab (extþkMBg;qñaMg) manRbPBEtmYy b:ueNaÑHKWRbmUlmkBItMbn;qñúkRTUkñúgextþkMBg;qñaMg eRBaHfatMbn;enHCaTItaMgmuxRcknaMecjpl ensaTd¾FMmYyrbs;bwgTenøsabsMrab;pÁt;pÁg;tMrUvkarTIpSa. manEtPaKsMNakex©AEtmYymuxeT EdlRbmUl)an edayehtufaxügmansPaBxSt;enArdUvEdlcuHRbmUlPaKsMNak. PaKsMNak EdlRbmUl)an manBIrEpñkKW RbePTex©AEdlrs;enAtammat;bwg nigex©AEdlrs;enAkñúgbwg.
PaKsMNakex©A EdlykmkBITenøemKgÁ (extþkMBg;cam)
epþatRtwmEtBIrkEnøg KWBIkñúg TenøemKgÁkñúgPUmisMbYrmas XMuBamCIkg RsukkgmasCakEnøgTImYy
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nigBItMbn;bwgFM PUmikMBg;sMNaj; XMuemon RsukéRBQr CakEnøgTIBIr.
cMENkÉenAbwgeCIgÉk manEtRbePTxügeTEdlRtUv)anelIkykmkeFVIkarsikSa eRBaHfaenAkñúgbwgenHesÞIrEtminmanex©Ars;enAenaHeT. TItaMgPaKsMNakRbmUlBIbwgenHRtUv)an EbgEckCabYnkEnøgepSg²Kña³ muxsßanIy_bwgRtEbk muxsßanIy_bwgTMBn; tMbn;kNaþlbwg nigRck TwkhUrecjBIbwgsMedAeTATenø)asak;.
RKb;PaKsMNak;éntMbn;sikSanImYy² RtUv)anykmkeFVIkarBiesaFn_viPaKedIm,IkMNt; brimaN DDTs (o,p’-DDD, p,p’-DDD, o,p’-
DDE, p,p’-DDE, o,p’-DDT, nig p,p’-DDT) nig PCBs (WHO mix). dMeNIrkarviPaKenHeRbIR)as;m:asIun HPLC (High Performance Liquid Chromatography) rbs;TIBiesaFn_RsavRCavKImIrbs;ed)a:tWm:g;KImIén saklviTüal½yPUminÞPñMeBj. 1>4 sar³sMxan;énkarRsavRCav
bEnßmelIkarBitEdlfa DDTs nig PCBs
GacsßitenAyUrGEgVgkñúgbrisßan
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vak¾Ca sarFatuEdleKsÁal;y:agc,as;faCaGñkbgáTukçeTasdl;suxPaBmnusS stV nigbrisßanTUeTApg Edr. müa:geTot sarFatuTaMgenHGackkKrCabnþbnÞab;kñúgExSGahar edaycab;BIbrimaNd¾ tictYcrbs;vakñúgTwk bnþmkdIl,ab; rYcmkdl;stVTwkdUcCaex©A xüg Edlrs;enAGaRs½yelIdI l,ab;enaHpÞal;Etmþg. RbsinebIkarsikSaenH bgðajlT§plviC¢mancMeBaHvtþmanrbs; DDT nig PCBs
nigemtabUlItrbs;vaenaH vanwgkøayCasarmYyEdlbgðajBIkþIkgVl;cMeBaHsuxPaBdl; raCrdæaPi)al nigsaFarN³CnTUeTA BiessRkummnusSEdlniymcUlcitþbriePaKRkumsib,IstV enHCaGahar. CagenHeTAeTot karsikSaenHnwgrYmcMENksMrab;CaÉksareyagdl;karsikSa elIkeRkayeTotsþIBIkMritbMBulrbs; DDTs
nig PCBs
enAkñúgtMbn;sikSaTaMgbIenH. 1>5 RbvtþiénkarRsavRCav
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tamÉksarRsavRCavbgðajfa karsikSaRsavRCavGMBIkarkMNt;brimaN DDTs nig PCBs
enAkñúgRbeTskm<úCahak;enAmankMritenAeLIy ebIeRbobeFobnwgbNþaRbeTsd¾éTeTot elIRbFanbTdUcKña. bEnßmelIenH karsikSaTaMgenaH)aneFVIeLIgelIPaKsMNakxus²KñaCaeRcIn rYmmanTwkedaHmnusS RtI Twk dI nigdIl,ab;CadIm. edaysarehtuplCaeRcIn mankarsikSaBI DDTs nig PCBs
EtmYycMnYnb:ueNaÑHEdlRtUv)aneFVIeLIgkñúgRbeTseyIg ehIykñúgcMeNam enaHmanxøHeFVIkarviPaKenAbreTs edayRKan;EtRbmUlPaKsMNakBIRbeTseyIgeT. xageRkam enHCa sñaédmYycMnYnEdl)aneFVIkarRsavRCaveTAelI DDTs nig PCBs kñúgeBlknøgmk³
Chak, (2009) )ansikSaBIkarkMNt;brimaN PCBs nig DDTs enAkñúgdIl,ab;enAtMbn; bwgeCIgÉk . lT§plénkarRsavRCavenHbgðajfaman p,p’-DDT nig p,p’-DDE (rhUtdl; 100 ppb) nig PCBs
mYycMnYnmanvtþmankñúgPaKsMNa21
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kenAtMbn;EdlkaksMNl;hUrcUlbwg. b:uEnþkMhab;FatuTaMgenaHmantMéltUcCagbrimaNkMNt;tUcbMputenAtMbn;TwkhUrecjBIbwgcUleTA Tenø)asak;. enHbBa¢ak;fa tMbn;bwgeCIgÉkkMBugEtedIrtYnaTICaGñkeRcaHsarFatuBulTaMgenaH nigkarBarmineGaysarFatuTaMgenaHRtUv)annaMykeTAkan;Tenø)asak; b:uEnþktþaenHGacbgáCakþI kgVl;sMrab;RbCaCnEdlbriePaKRtIenAtMbn;enH.
Bart et al., (2009)
)anRsavRCavBIsMNl;sarFatusrIragÁkøer:EdlmanesßrPaByUr GEgVgkñúgdIl,ab; nigRtIkñúgGagTenøemKgÁeRkam EdlCakEnøgrs;enArbs;stVepSatk,al RteLak (Orcaella brevirostris) enAkm<úCa. CalT§pl eK)anrkeXIj PCBs kñúgRKb; PaKsMNakTaMgGs;enAcenøaHkMhab;BI 0.68 dl; 53 ng/g m:ass¶ÜtdIl,ab; nigBI 5.5
eTA 144 ng/g
m:asesImrbs;RtIEdlkñúgenaH PCB 153 nig PCB 87
maneRcInCageKkñúgPaKsMNakRtI. cMENkkMhab; DDTs manBIrkmineXIjeTA
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12 ng/g m:ass¶ÜtdIl,ab;Edl DDD
CaRbePTsMbUr CageK. Verné (2009)
)ansikSasþIBIkarsøab;rbs;stVepSatk,alRteLakenATenøemKgÁkm<úCa (Orcaella
brevirostris) . Ep¥kelIlT§plénkarviPaKbgðajfa DDT enAkñúgRsTab;xøaj; (mancenøaHBI 4100 eTA 12000 ng/g)
rbs;stVepSatk,alRteLakTenøemKgÁmancMnYn 10 dg x<s;Cag DDT
manenAkñúgRsTab;xøaj; (cenøaHBI 1100 eTA 5052 ng/g) rbs;stVepSatk,al RteLakénTenøQIlIka (Chilika). É PCBs man 660
ng/g Tl;nwg 28 ng/g rbs;stVepSat k,alRteLakénTenøQIlIka. CalT§pl)anbgðajfa kMritCatiKImIBulrbs;stVepSatk,al RteLakénTenøQIlIka TabCagq¶ayebIeRbobeFobeTAnwgkMritCatiBuldUcKña (DDTs nig PCBs)
Edl)anRtUvBinitüeXIjenAkñúgPaKsMNakRsTab;xøaj;rbs;stVepSatTenøenAkúñgRbeTs km<úCa .
Carvalho et al., (2008)
)anRsavRCavBIsMNl;sarFatuKImIEdleRbIkñúgvis½yksikmµ nig PCBs
enAkñúgdIsNþTenøemKgÁRbeTsevot
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NamelIPaKsMNakTwk dIl,ab; nigBBYksib,I stV. eK)anrkeXIjfa DDT
mankMhab;x<s;CageKKWCamFüm 6.3
ng/g m:ass¶Ütrbs;dIl,ab; nig 38.6 ng/g
Calikasib,IstV. bnÞab;mkKWkMhab; PCBs Gg;dUs‘ulpan Gicsakør:UsIukøÚGicsan nigkørdan. lT§plenHbgðajfa kMhab;énsMNl; PCBs
nigfñaMsMlab;stVl¥itenAdIsNþ TenøemKgÁmanticCagtMélEdlrkeXIjenAtMbn;d¾éTeToténRbeTsevotNam .
Dang et al., (2001)
)aneFVIkarkMNt;kMhab;fñaMsMlab;stVl¥itkøer: nig PCBs enAkñúg dIl,ab; nigBBYkxügBIERBkTwksabEk,rRkughaNUyRbeTsevotNam. lT§plEdlTTYl)an bgðajfa kMhab; DDT
srubkñúgdIl,ab;manBI 7 eTA 80 ng/g
(m:ass¶Üt) nigBI 6 eTA 864 ng/g (m:ass¶Üt)
énCalikaxüg. ÉkMrit PCBs manelIsBI 40 ng/g
(m:ass¶Üt) nigelIsBI 76 ng/g (m:ass¶Üt)
enAkñúgdIl,ab; nigxügtamerog. stVxügTaMgenHminmanGg;sIumEdlGaceFVIemta bUlIselI PCB Congeners
PaKeRcIneT dUcenHvaCaGñkRbmUlpþúMGskmµ (passive accumu-lators)
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nigCapøÚvd¾sMxan;kñúgkarbenÞr PCB Congeners
TaMgenaHmkGñkTTYlTansib,IstVTaMg enaH.
Finnish Institute of Marine Research (2007) )ansikSasþIBI PCBs nigfñaMsMlab;stV l¥itsrIragÁkøer:enAkñúgdIl,ab; nigsib,IstVBIsmuRT Baltic . kMbaab; PCBs
EdlrkeXIjCasrub én PCBs cMnYn 7 (PCB 28, 52,
101, 118, 138, 153, 180) manBI 0.04 eTA 6.2 µg/kg ehIy DDTs
(p,p’-DDT, p,p’-DDD nig p,p’-DDE) manBI 0.13 eTA 5.0 µg/kg
kñúgdIl,ab;viPaK. cMENkkñúgsib,IstVkMhab; PCBs
srubmanBI 72 eTA 110 µg/kg m:as;lIBIt xN³EdlkMhab; DDTs srubmanBI 66 eTA 140
µg/g . Chen et al., (2002) )ankMNt;brimaNsMNl; HCHs,
DDTs nig PCBs kñúgstVTwkmansMbk (Shellfish)
BItMbn;eqñrénekaH Xiamen Island xagekIt nig Minjiang Estuary
RbeTscinedayeRbIm:asIun GC. CalT§pl kMhab;énsaFatuBulsrIragÁkøer:man PaBxusKñaBItMbn;mYyeTAmYy xusKñatamrdUv nigRbePTénstVTwkenaH b:uEnþCaTUeTAKWx<s;Cag brimaNkñúgdIl,ab;. kñúgenaH DDTs
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mankMhab;x<s;CageK ebIeRbobeFobCamYy PCBs nig HCHs
EdlenHsbBa¢ak;eGayeXIjfa DDTs
CasarFatusrIragÁkøer:EdleRbIR)as;CaTUeTA enAtMbn;EdlsikSa .
Monirith et al., (2000)
)ansikSaBIkarqøgénsmasFatusrIragÁkøer:enAkñúgRtI nigsb,IstVBIRbeTskm<úCa nigbNþaRbeTsd¾éTeTotenAGasIu. eK)anrkeXIjfa DDT
nigemtabUlItrbs;vamankMhab;x<s;CageK eRbobeFobCamYysmasFatusrIragÁkøer:d¾éTeTot kñúgcenøaHkMhab;BI 0.5
eTA 25 ng/g (m:asesIm) kñúgRtI nigBI 0.2
eTA 1.6 ng/g (m:asesIm) rbs;gav. bnÞab;mkKW PCBs kñúgkMhab; 0.05 eTA 1.2
ng/g (m:asesIm) kñúgRtI nig <0.05 eTA 5.0 ng/g
(m:asesIm) rbs;gav. karsniñdæanEdlTajecjBIlT§plénkarsikSaenH)anelIk eLIgfakm<úCaCaRbeTsEdlmanbrisßans¥atenAeLIy ebIeFobnwgbNþaRbeTskñúgtMbn;Edl)an sikSa.
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Tatsuya et al., 2004
)aneFVIkarkMNt;brimaNsarFatusrIragÁkøer:EdlmanesßrPaB (OCs) dUcCa DDT
nigemtabUlItrbs;va (DDTs) PCBs
GIusUEmrGicsakør:UsIukøÚGicsan (HCHs) Gicsakør:UsIukøÚbg;Esn (HCB)
smasFatukørdan (CHLs) RTIs-(4-
kør:UepnIl)emtan (TCPMe) nig RTIs-(4-
kør:UepnIl)emtaNul (TCPMOH)
enAkñúgTwkedaHmnusSBIRbeTs km<úCa. kMhab; DDTs, PCBs, HCHs, HCB, CHLs nig TCMe RtUv)anrkeXIjesÞIrEtRKb; PaKsMNakénTwkedaHmnusSTaMgGs;Edl)anviPaK ehIycenøaHkMhab;rbs;vamanBI 310
eTA 11, 000; 6.0 eTA 87; <0.12 eTA 21; <0.12 eTA 8.1; <0.12
eTA 5.3; nig 2.9 eTA 70 ng/g m:aslIBIttamerog. kMhab; DDTs
EdlrkeXIjmaneRcInKYreGaykt;sMKal; ebIeFobnwg kMhab;EdlrkeXIjenAbNþaRbeTsGPivDÆn_. b:uEnþtMélenHRbhak;RbEhlnwgkMritEdlrk eXIjenARbeTskMBugGPivDÆn_d¾éTeTot EdleKsgS½yfamankareRbIR)as;
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DDT enAEtman kñúgvis½yksikmµ nigsuxPaBsaFarN³ .
Kim K. et al., 2002
)ansikSaBITMrg;PUmisaRsþénr)ay nigkarekIneLIgrbs;sMNl; sarFatusrIragÁkøer:kñúggavéntMbn;eqñrrbs;kUer:xagt,Úg. karRsavRCavenH)anbgðajfa PCBs
CasarFatuEdlsMbUrCageKkñúgcenøaHBI 4.4 ng/g eTA 422.0 ng/g . bnÞab;mkKW DDTs
EdlmankMhab;BI 8.4 eTA 47.5 ng/g .
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CMBUk2 RTIsþI nigbBaØtþiBak;B½n§
2>1 GtþsBaØaNKImIrbs; DDT nig PCBs
2>1>1 GtþsBaØaNKImIrbs; DDT ³ lkçN³rUb niglkçN³KImI
DDT CafñaMsMlab;stVl¥itsMeyaK EdlRtUv)anpliteLIgkñúgTMrg;CaemS:ABN’s b¤Ca RkamKµanBN’ Kµankøin b¤RkGUbtic² (Ritter, 1995). tamBiteTA fñaMsMlab;stVl¥itRbePT DDT
Edldak;lk;enAelITIpSaminEmnCasarFatusuT§enaHeT EtvaCal,ayénsarFatuCaeRcIn RbePTcUlKña. DDT
EdleRbICafñaMsMlab;stVl¥it CaTUeTACal,ayénsmasFatuKImIrhUtdl; 14 RbePTepSgKñaEdlkñúgenaH 65 eTA 80% Ca p,p’-DDT. smasPaKd¾éTeTotrYmman o,p’-DDT (15–21%),
p,p’-DDD (4%) nig 1-(p-chlorophenyl)-2,2,2-trichloroethanol (1.5%) (Agency
for Toxic Substances and Disease Registry, 2002). eRkABIenHCasarFatu epSgeTotCaeRcIndUcCa o,o’-DDT, bis(p-
chlorophenyl) sulfone nig m,p’-DDT RbEhl 1% (EPA, 1985) . eTaHCay:agenHkþI ebIeKniyayBI DDT
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eKsMedAEteTAelI p,p’-DDT
EdleKsÁal;edaysarEtlkçN³d¾sMebImrbs;vakñúgkarsMlab;stVl¥it (Agency for Toxic
Substances and Disease Registry, 2002). TMrg;m:UelKul nigeQµaHrbs;Rslay DDTs
TaMgR)aMmYymanbgðajdUckñúgrUbPaB 2.1.
p,p’-DDT p,p’-DDE p,p’-DDD 1,1,1-trichloro-2,2-bis 1,1-dichloro-2,2-bis 1,1-dichloro-2,2- bis (p-chlorophenyl) (p-chlorophenyl) (p-chlorophenyl)
ethane ethylene ethane
o,p’-DDT o,p’-DDE o,p’-DDD1,1,1-trichloro-2-(o-chloro- 1,1-dichloro-2-(o-chloro- 1,1-dichloro-2-(o-chloro- phenyl) -2-(p-chlorophenyl)- phenyl)-2-(p-chlorophenyl) phenyl)-2-(p-chlorophenyl) ethane ethylene ethane
rUbPaB 2.1: TMrg;m:UelKul nigeQµaHrbs; DDT, DDE, DDD
tarag 2.1 a : lkçN³rUb niglkçN³KImIrbs; p,p’-DDT, p,p’-DDE, p,p’-DDD
lkçN³ p,p’-DDT p,p’-DDE p,p’-DDD
rUbmnþm C14H9Cl5 C14H8Cl4C14H10Cl4
m:asm:Ue 354.49 318.03 320.05
BN’ TMrg;RKIsþal;KµanB BN’s TMrg;RKI
sþal;KµasNæanrU GgÁFatur GgÁFa GgÁFatucMNucrlay 109 89 109 - 110
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cMNucrM bMEbkFat 336 350
dg;sIuet 0.98 – 0.99 - 1.385
køin Kµankøin - KµankøikMritrlayk 0.025 mg/L 0.12 mg/L 0.090 mg/L
tarag 2.1 b : lkçN³rUb niglkçN³KImIrbs; o,p’-DDT, o,p’-DDE, o,p’-DDD
lkçN³ o,p’-DDT o,p’-DDE o,p’-DDD
rUbmnþm C14H9Cl5 C14H8Cl4C14H10Cl4
m:asm:Ue 354.49 318.03 320.05
BN’ emSARka - -
sNæanrU GgÁFatur - GgÁFatucMNucrlay 74.2 - 76 - 78
cMNucrM - - -
dg;sIuet 0.98 – 0.99 - 1.385
køin Kµankøin - -
kMritrlayk 0.085 mg/L 0.14 mg/L 0.10 mg/L
2>1>2 GtþsBaØaNKImIrbs; PCBs
b‘ÍepnIlb:UlIkørY (PCBs)
CaRkumsarFatumYyEdlmanGatUmkørBI 2 eTA 10 P¢ab;CamYy nwgvg;b‘ÍepnIl (rUbPaB 2.2). b:uEnþm:UNUkør:Ub‘ÍepnIl EdlmanEtGatUmkørmYyP¢ab;nwgm:UelKul b‘ÍepnIlk¾RtUv)anrab;bBa©ÚlEdrenAeBlEdleKniyayBI PCBs. edaysarEtPaBxusKñaéncMnYn nigTItaMgénkarP¢ab;rbs;GatUmkør
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va)anbegáIteGayman PCBs cMnYn 209
RbePTxusKñaEdleK ehAfa Congeners (Agency for
Toxic Substances and Disease Registry, 2000).
rUbPaB 2.2:
TMrg;m:UelKulrbs; PCBs
TItaMg 2, 2’, 6 nig 6’ CaTItaMgGrtU ÉTItaMg 3, 3’, 5 nig 5’ CaTItaMgemta TItaMg 4 nig 4’ CaTItaMg):ar:a. vg;bg;EsnGacvilCMuvijsMB½n§EdlP¢ab;va EdlnaMeGayekItmanTMrg;rUbsNæan BIrxusKñaKW TMrg;bøg; (vg;bg;EsnTaMgBIrenAelIbøg;EtmYy)
nigTMrg;minbøg;Edlvg;bg;EsnTaMgBIr sßitenAEkgKñaelImMu 90º (Agency for Toxic
Substances and Disease Registry, 2000).
PCBs
Edldak;lk;elITIpSasMrab;bMerIeGayvis½yBaNiC¢kmµGacmansmasPaKxus² KñaCamYynwgeQµaHepSg²KñatamRkumh‘unEdlplit. ebIeTaHCay:agenHkþI manEtsmaCik
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PCBs RbEhlCa 130 Congeners
b:ueNaÑHeTEdlRtUv)anrkeXIjkñúgplitplEdlcracrN_elITIpSa (UNEP, 2002). cMeBaH PCBs EdlplitedayshRKas Monsanto Corporation rbs; shrdæGaemricenAcenøaHqñaM 1930 dl; 1977 CaRbePTl,ayeRkameQµaHBaNiC¢kmµ Aroclor . Aroclors
kMNt;edayelxkUdCacMnYnKt;bYnxÞg; EdlBIrxÞg;xagmuxbBa¢ak;BIRbePTénl,ay ehIyelxBIrxÞg;xageRkay bgðajeGaydwgBItMélRbEhlénbrimaNkørEdlmankñúgPaKry Cam:as. ]TahrN_ Aroclor 1242
KWCal,ayénb‘ÍepnIlkørY EdlmanbrimaNénGUm:ULÚkkørBI m:UNUdl;Gibta CamYynwgbrimaNkørRbEhl 42%. krNIelIkElgénRbB½n§kUdenHKW Aroclor 1016
EdlmanbrimaNénGUm:ULÚkkørBIm:UNUdl;GicsaCamYynwgbrimaNkørRbEhl 41% (Agency for Toxic Substances and Disease Registry, 2000).
2>1>2>1 RbePT (Congeners) GUm:ULÚk nigGIusUEmrrbs; PCBs
RbePT (Congeners) ³ PCBs
mYykñúgcMeNam PCBs TaMg 209
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GacRtUvKñanwgrUbmnþ m:UelKul C12H
10-nCln Edl n = 1 dl; 10. RbePT PCB
nImYy²GacRtUv)ankMNt;y:agc,as; edayviFanehAeQµaHpøÚvkarnUvcMnYn nigTItaMgrbs;GatUmkørEdlmanenAelIvg;. mü:ageTot PCBs Congener
nImYy²k¾RtUv)andak;eQµaHCaelxBI 1 dl; 209 eday IUPAC pgEdr. kareRbIRbB½n§eQµaHCaelxenH)anpþl;PaBgayRsYleRcIn b:uEnþvamin)anpþl;Bt’manCak;lak;BI GtþsBaØaNKImIrbs;RbePTnImYy²enaHeT (Tala et al., 2003).
GUm:ULÚk³ CaRkumrgrbs; PCB congeners EdlkMNt;edaycMnYnkørEdlmanvtþman eBalKWcab;BI b‘ÍepnIlm:UNUkørYrhUtdl;b‘ÍepnIledkakørY. PCBs
sßitkñúgRkumGUm:ULÚkCamYyKña manm:asm:UelKul nigcMnYnkøresµIKña b:uEnþTItaMgEdlkørP¢ab;enaHGacxusKñaEdlbegáItCaGIusUEmr
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CaeRcInkñúgRkumGUm:ULÚkEtmYy (Tala et al., 2003).
GIusUEmr³ Cab‘ÍepnIlEdlenAkñúgRkumGUm:ULÚkEtmYy eBalKWvamanm:asm:UelKul nigrUbmnþm:UelKuldUcKña b:uEnþmanKMrUénkarCMnYsrbs;GatUmkøxusKña. GIusUEmryfaRbePTmYy RtUvkMNt;y:agCak;lak;edayTItaMgrbs;GatUmkørEdlmanenAelIvg;b‘ÍepnIl ]TahrN_ 3,3’, 4,4’,5-b:g;takør:Ub‘ÍepnIl (Tala
et al., 2003) (tarag 2.2). tarag 2.2 : PCBs GUm:ULÚk
nigcMnYnGIusUEmrrbs;va (Tala et al., 2003)
cMnYnGatUmkør
RkumGUm:ULÚk
rUbmnþm:UelKu
l
m:asm:Uel
Kul
cMnYnGIusUEmr
0 biphenyl C12H10 154.1 1 1 mono-CB C12H9Cl 188.0 3 2 di-CB C12H8Cl2 222.0 12 3 tri-CB C12H7Cl3 256.0 24 4 tetra-CB C12H6Cl4 289.9 42 5 penta-CB C12H5Cl5 323.9 46 6 hexa-CB C12H4Cl6 357.8 42
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7 hepta-CB C12H3Cl7 391.8 24 8 octa-CB C12H2Cl8 425.8 12 9 nona-CB C12HCl9 459.7 3 10 deca-CB C12Cl10 493.7 1
2>1>2>2 PCBs
EdlmanlkçN³dUcDIGuksIunkñúgcMeNam PCBs TaMg 209
EdleKsÁal;man PCBs cMnYn 12
EdlbgáPaBBultamry³ Aryl Hydrocarbon Receptor (AhR)
tamlMnaMdUc 2,3,7,8-tetrachlorodibenzo-p-dioxin
(TCDD) ehIyRtUv)aneKeGayeQµaHfa PCBs
EdlmanlkçN³dUcDIGuksIun (dioxin-like PCBs). lkçN³énskmµPaBrbs; PCBs
TaMgenHmanTMnak;TMngCamYynwgTMrg;m:UelKul rbs;va. Ca]TahrN_ BYkvamanGatUmkøry:agehacNas;bYnenAelITItaMgqøúHsgxag (KWfa 3, 3’, 4, 4’,
5, 5’) ehIyGacKµan (non-)
b¤manGatUmkørEtmYyKt; (mono-)
elITItaMgGrtU (eBalKW 2, 2’, 6, b¤ 6’)
énvg;b‘ÍepnIl. PCBs
EdlKµanGatUmkørelITItaMgGrtU GacRtUv)aneKehAfa PCBs bøg; (co-planar PCBs). b:uEnþeQµaHenHminRtUv)aneRbICaTUeTAeT edayehtuplfa PCBs
mingaybegáItCaTMrg;bøg;dUcBYkDIGuksIun nighVrr:an (furans) enaHeT. man
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PCBs cMnYnbYnCa RbePT Non-ortho-dioxin-like PCBs
nigR)aMbIeTotCaRbePT Mono-ortho-dioxin-like PCBs
(Tala et al., 2003) (tarag 2.3). tarag 2.3 : PCBs
EdlmanlkçN³dUceTAnwgDIGuksIun (Tala et al., 2003)
eQµaHCaelxtam IUPAC
RkumGUm:UL
ÚkRkumCMnYs
eQµaHeBjtam IUPAC
77 tetra-CB non-ortho 3,3’,4,4’-tetra-CB81 tetra-CB non-ortho 3,4,4’,5-tetra-CB
126 penta-CB non-ortho 3,3’,4,4’,5-penta-CB
169 hexa-CB non-ortho 3,3’,4,4’,5,5’-hexa-CB
105 penta-CB mono-ortho 2,3,3’,4,4’-penta-CB
114 penta-CB mono-ortho 2,3,4,4’,5-penta-CB
118 penta-CB mono-ortho 2,3’,4,4’,5-penta-CB
123 penta-CB mono-ortho 2,3’,4,4’,5-penta-CB
156 hexa-CB mono-ortho 2,3,3’,4,4’,5-hexa-CB
157 hexa-CB mono-ortho 2,3,3’,4,4’,5’-hexa-CB
167 hexa-CB mono-ortho 2,3’,4,4’,5,5’-hexa-CB
189 hepta-CB mono-ortho 2,3,3’,4,4’,5,5’-hepta-
2>1>2>3 PCBs
EdlminmanlkçN³dUcDIGuksIun
37
Mono-ortho-dioxin-like PCBs
Non-ortho-dioxin-like PCBs
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RbePT PCBs EdlenAsl;cMnYn 197
eTotRtUv)ancat;cUlCa PCBs Edlminman lkçN³dUceTAnwgDIGuksIun (non-dioxin-like
congeners) . RkumenHk¾GacRtUv)anehAfaCa RbePTminEmnbøg; (non-coplanar)
b¤RbePTmanRkumCMnYsRtg;TItaMgGrtU (ortho-substituted congeners) (Tala et al., 2003). 2>1>2>4 lkçN³rUb niglkçN³KImIrbs; PCBs
PCBs
CasarFatuEdlmanniclPaBx<s;tamn½yKImI. vamanesßrPaBcMeBaHmuxGasIut nig)as Fn;kMedAnigsMBaF mincMlgcrnþGKÁisnI (Larry, 2006; WHO, 2003). CaTUeTA PCBs
mansItuNðPaBrMBuHx<s; (x<s;Cag 200°C) mansMBaFcMhayTab rlaykñúgTwktic mingay bMEbkkñúgmCÄdæanTUeTA (Tala et al., 2003). enAkñúgPaBsuT§ PCBs
CasarFatuKµanBN’ Kµankøin manTMrg;CaRkameRkamlkçxNÐFmµta. l,ay PCBs
Edldak;lk;elITIpSamanlkçN³føa CaGgÁFaturavGn§il
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ehIyvanwgkan;EtGn§il kalNavtþmanrbs;kørmankan;EteRcIn (Erickson, 2001). lkçN³rUb niglkçN³KImIERbRbYltamRbePT PCB
nImYy². enAeBlkMritkørkmµ ekIneLIg enaHcMNucrlay nigPaBrlaykñúgxøaj;ekIneLIg b:uEnþsMBaFcMhay nigPaBrlaykñúg TwkfycuH. dg;sIuetrbs;vaERbRbYlBI 1.182 eTA 1.566 Kg/L (Chak, 2009).
kMriténPaBBulrbs; PCB congener
nImYy²mindUcKñaenaHeT. RbePTEdlmankMrit bMBulx<s;bMputmanlkçN³bIy:ag³ (1)
BYkvamanGatUmkørCMnYsRtg;TItaMgGrtUticEdlnaMeGay vg;Gar:Um:aTicTaMgBIrsßitenAelIbøg;EtmYy (2)
vamanGatUmkørbYnb¤eRcInCagenH (3) eBlsßit kñúgsNæanbøg; (coplanar state) PCBs
RkumenHbgðajnUvlkçN³dUc 2,3,7,8-
etRtakør:UDIGuksIun b¤etRtakør:UhVÚr:an EdlGacbeBa©jskmµPaBBuly:agxøaMg (Lake Michigan LaMP, 2000) (tarag 2.4) .
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tarag 2.4 : lkçN³rUb niglkçN³KImIrbs; PCB
congeners EdlBulxøaMgbMputmYycMnYn
RbePT PCB
(congener)
TItaMgCMnYs
(IUPAC Nº)
m:asm:UelKul (g/mol)
rUbmnþm:UelKul (C12H 10-
nCln)
cMNucrMBuH (ºC)
kMritrlaykúñgTwk
(mg/L, 25 ºC)PCB 1 2 188.7 C12H9Cl 274 4.83PCB 77 3,4,3’,4’ 292.0 C12H6Cl4 380 0.175PCB 81 3,4,5,4’ 292.0 C12H6Cl4 - -PCB 105 2,3,4,3’,4’ 328.4 C12H5Cl5 - 0.0034PCB 118 2,4,5,3’,4’ 328.4 C12H5Cl5 - 0.0134PCB 126 3,4,5,3’,4’ 328.4 C12H5Cl5 - -PCB 138 2,3,4,2’,4’,5’ 360.9 C12H4Cl6 400 0.0159PCB 153 2,4,5,2’,4’,5’ 360.9 C12H4Cl6 - 0.000 91PCB 156 2,3,4,5,3’,4’ 360.9 C12H4Cl6 - 0.005 33PCB 163 2,3,5,6,3’,4’ 360.9 C12H4Cl6 - 0.001 195PCB 169 3,4,5,3’,4’,5’ 360.9 C12H4Cl6 - 0.000 036PCB 180 2,3,4,5,2’,4’,5’ 395.3 C12H3Cl7 240-280 0.000 31
2>2 \T§iBlGviC¢manrbs; DDTs nig PCBs elIsuxPaBmnusS
DDTs nig PCBs
manlkçN³RsedogKñaelIPaBsßitesßr)anyUrrab;sibqñaMkñúgbrisßan edaysarEtBYkvamansMBaFcMhayTab manTMenarrlaykñúgxøaj; mingayrgkarbMEbk nigFn; nwgRbtikmµGuksIutkmµedayBnøW (USEPA, 2000). lkçN³TaMgenH GnueRKaHeGayvamanPaB gayRsYlnwgkkKrkñúgCalikaxøaj;
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CabnþbnÞab;bnþicmþg²tamExSRcva:k;Gahar rhUtmkdl;stV EdlsßitenAEpñkxagelIénExSGahar. KµansarBagÁkayNamYyénsßanRbB½n§ RtUv)ancat;Tukfa minmanpÞúk DDTs
nig PCBs enaHeT (Vladimir et al., 2002). cMENkÉmnusSeyIgvij Gacniyay)anfaman»kaseRcInkñúgkarrgkarKMramkMEhgEpñksuxPaB edaysarmnusSk¾Ca RbePTfñak;x<s;mYyénExSGaharsßanRbB½n§. mnusSGacnwgRbQmCamYy DDTs nig PCBs tammeFüa)ayCaeRcIndUcCa kardkdegðIm karRCabcUltamEs,k karTTYlTanTwk CaBiess karbriePaKRtI sac; b¤stVTwkEdlmanRbPBBIbwg TenøEdlrgkarbMBuleday DDTs nig PCBs
(Michelle et al., 2000) .
2>2>1 \T§iBlGviC¢manrbs; DDTs
elIsuxPaBmnusSDDT
nigemtabUlItrbs;vaGacRCabcUleTAkúñgsarBagÁkaymnusStamrebobbIy:ag sMxan;KW karRCabcUltamEs,k tamdMNkdegIðm karcUltammat; EdlbnÞab;mkvaRtUv)anbMEbk
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edayRbB½n§rMlayGahar. eRkayBIkarbMEbk DDTs
GacbgáCaeRKaHfñak;edaymanTaMg eRKaHfñak;F¶n;F¶r nigeRKaHfñak;raMuérCaeRcIn. srIragÁsMxan;²Edlgayrg\Ti§BlBI DDTs
rYmman RkBH eBaHevon ebHdUg srésrQam tMrgenam RbB½n§RbsaT RbB½n§Twkrég RbB½n§bnþBUC RbB½n§Gg;dURKIn nigEs,k (National Park
Service, 2000) . 2>2>1>1 eRKaHfñak;F¶n;F¶rrbs; DDTs
tamkarkMNt;rbs;kmµviFICatiBulrbs;shrdæGaemric DDT
sßitkñúgRbePTCasarFatu EdlmankMritBulmFüm (Moderately toxic)
nigCasarFatuEdlmankMriteRKaHfñak;mFüm (Moderately Hazardous)
edayGgÁkarsuxPaBBiPBelak (WHO)
edayEp¥kelI LD50
rbs;vaeTAelIstVkNþúresµInwg 113 mg/Kg
(Agency for Toxic Substances and Disease Registry, 2002). kMriténkarBulF¶n;F¶r (Acute Effects)
Gacbgðajtamry³karrkkl;cg;k¥Üt kark¥Ütceg¥ar QWk,al s<wkmux karsøab;EpñkxøHénragÁkay
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karRbkac; dkdegðImjab; CIBcrcuH exSayCagFmµta ehIykñúgkrNIF¶n;F¶rGacnaMeTAdl;karsøab; (National Park Service, 2000; New Jersey Department of Health and
Senior Services, 2002). 2>2>1>2 eRKaHfñak;raMuérrbs; DDTs
bEnßmelIeRKaHfñak;F¶n;F¶r karBulruaMér (Chronic Effects) rbs; DDTs
)anbgáCakþI )armÖdl;mnusSCatiTUeTA edaysarfaeRKaHfñak;ruaMérmanTMhMFMCageRKaHfñak;F¶n;F¶rrbs;vaq¶ay Nas;. eRKaHfñak;rauMér GacekItmanbnÞab;BIkarrg\Ti§Blrbs; DDTs kñúgry³eBlyUr eRcInEx eRcInqñaM eTaHkñúgbrimaNtictYck¾eday (New
Jersey Department of Health and Senior Services, 2002). eRKaHfñak;TaMgenaHrYmman karbgáCMgWmharIk plb:HBal;elIRbB½n§bnþBUC karlUtlas; RbB½n§PaBsauM nigplb:HBal;d¾éTeTot.
k> karbgáCMgWmharIk³ mankarsikSaCaeRcInbgðajfa DDT
nigemtabUlItrbs;va (DDD nig DDE)
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CaPñak;bgáCMgWmharIkeTAelIstVEdlykmkBiesaFn_. dUcenH DDTs
RtUv)ancat;TukfaCasarFatuGacbgáCMgWmharIkdl;mnusS ebIeTaHCaminmankarsikSaNamYy CaPsþútageGayc,as;k¾eday eRBaHfamnusSminEmnCakmµvtßúénkarsikSaenaHeLIy (WHO, 2009). Pñak;garGnþrCatisMrab;karRsavRCavBICMgWmharIk (IARC) )ankMNt; DDTs
eGayenA kñúgRkum 2B
EdlCaRkumsarFatuGaceGaymnusSb:HBal;vaekItCaCMgWmharIk)an (Brenda et
al., 2009) . srIragÁeKaledAEdlgaynwgrgkarbgáCMgWmharIkrYmman eføIm lMEBg sudn; bMBg;TwkRbmat; sYt ekasikaQam RbB½n§Twkrég nigEs,k (Brenda et al., 2009; WHO, 1999).
x> plb:HBal;elIRbB½n§bnþBUC nigkarlUtlas;³ plb:HBal;mYyeTotEdl DDTs GacbgáeLIg KWkareFVIeGaymanbMErbMrYlxusRbRktIénRbB½n§bnþBUC nigkarlUtlas;rbs;mnusS TaMgbursnigRsþI (EJF, 2003).
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clnkarénskmµPaBBulrbs;va GacBnül;)anedaysar EtPaBRsedogKñaénTMrg;KImIrbs;vaCamYynwgGrm:Unesþr:UGIutrbs;mnusS eBalKWGrm:UnGg;RdUEsn rbs;burs nigGrm:UnGWsRtUEsnrbs;RsþI (EJF,
2003). lkçN³enH GaceGayvamanlT§PaBeTA P¢ab;CamYyGñkTTYl (Receptor)
énGrm:UnTaMgenH ehIyCMrujkareqøIytbxusFmµtarbs; ekasika. cMeBaHRsþIeBjv½yEdlb:HBal; DDTs
kñúgry³eBlyUrGacbNþaleGayman bMErbMrYlvdþrdUv ry³eBlmanK’P nigkMLúgeBlEdlGacplitTwkedaH. cMENkRsþImanépÞeBaH vij GacbgáplGaRkk;dl;kUnkñúgépÞdUcCa karrlUt ekItminRKb;Ex mansPaBxusFmµta kUnekIt mkmanbBaðaRbB½n§RbsaT exSayEpñkstibBaØa karcgcaM )at;bg;clnasac;dMu manbBaðapøÚvcitþ nigEpñkGakb,kiriya (Chak, 2009). cMeBaHmnusSRbusvij vaGacnaMeTAdl;PaByWty:avén
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GayuRKb;kar bnßykarplitekasikaePTeQµal b¤PaBcuHexSayénsmtßPaBekasikaePTkñúg karbgákMeNIt b¤naMeTAdl;PaBGsmtßPaBpøÚvePTEtmþg (EJF, 2003) .
K> plb:HBal;elIRbB½n§RbsaT RbB½n§PaBsauM nigRkeBjTIr:UGIut³ DDTs
CaGñkbg¥ak; skmµPaBrbs;Gg;sIumGaesTIlkUlIneGEsÞr:as EdlCaGg;sIumsMxan;mannaTIkñúgkareFVIGIuRdUlIs elIGaesTIlkUlIn. Gvtþmanrbs;Gg;sIumenH eFVIeGaykarbBa¢ÚnsarRbsaTRtUv)anbBaÄb; ehIybNþaleGayRbB½n§RbsaTdMeNIrkarxusFmµta nig)at;bg;karbBa¢aelIsrIragÁ (karsøab; EpñkxøHénragÁkay) (EJF, 2003) . elIsBIenHeTot vaGaceTAP¢ab;CamYYy Receptor énPñak;gar plitGg;TIkr naMeGaykarsMeyaKGg;TIkrfycuH. ehtuenH ragÁkaygaynwgrgkarlukluy BIemeraKxageRkA.
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kar)at;bg;tulüPaBénRkeBjTIr:UGIut)aneFVIeGaymankarEsþgecjnUvPaBmin RbRktIénlkçN³ePTbnÞab;bnSM dUcCaGak,kiriyaCaedIm (Agency for Toxic
Substances and Disease Registry, 2000). X> plb:HBal;d¾éTeTot³
TMnak;TMngrvag DDTs
nwgCMgWTwkenamEp¥mCaTukçeTas mYyeTotEdlbgðajedaykarsikSamYycMnYn ebIeTaHCaminTan;mankarBnül;eGayc,as;enA eLIyk¾eday. eRkABIenH enAmankarbMErbMrYlmuxnaTIeføIm nigCMgWebHdUgCaedIm (Agency for Toxic
Substances and Disease Registry, 2000).2>2>1>3 Gnþrkmµrbs; DDTs
CamYysmasFatud¾éTeTotDDTs Gacman\
T§iBly:agTUlaytamry³karpøas;bþÚrpøÚvemtabUlIsrbs;smasFatu d¾éTeTot TaMgsarFatuBIeRkA (Xenobiotics)
nigsarFaturbs;ragÁkay (Endogenous macro-molecules) EdlnaMeGaymanPaBminRbRktIéndMeNIrRbRBwtþeTAénragÁkaymnusS. c,as;Cag enH DDE
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GacGenÞakGnÞgeTAelIskmµPaBrbs;Gg;sIumkñúgeføImdUcCa Cytochrome P450
CaedIm. skmµPaBenH )aneFVIeGaydMeNIremtabUlIsrbs;sarFatuBulmYycMnYnkan;Etskmµ ehIybegáItCaemtabUlItEdlmanlkçN³BulxøaMg (Agency for Toxic Substances and Disease Registry,
2000). manPsþútagbgðajBIkarsikSaCaeRcInEdlfa DDT CaGñkbgádMu BkmharIkkñúgeføImTaMgtamkarbegáItdMuBkelI DNA (DNA adducts)
nigkarsMrbsMrYldl; dMeNIrkarbgáCMgWmharIkrbs;Pñak;garbgáCMgWmharIkmYycMnYndUcCa 3-methyl-(4-dimethyl amine)-azobenzene, 2-
acethylaminofluorene, diethyl-nitrosamine nig carbom tetra-
chloride (Diwan et al., 1994). pÞúyeTAvij DDT
Gacbg¥ak;clnkarGenÞakGnÞgEdlnaM eTArkkarbgáCMgWmharIkedaHrbs;stVkNþúrrbs;sarFatu 7, 12-dimethyl benz[a] anthracene (DMBA) edaykarbegáInel,ÓnemtabUlIsrbs;vakñúgeføIm nigkarbeBa©jvamkeRkAEdlnaM
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eGayCMrabrbs;vacUlkñúgCalikamantictYc (Williams and Weisburger, 1991). 2>2>2 \T§iBlGviC¢manrbs; PCBs
elIsuxPaBmnusSebIeTaHCa PCBs minRtUv)ansMeyaK
b¤eRbIR)as;Gs;ry³eBleRcInqñaMmkehIyk¾eday mnusSmñaTUeTAenAEtGacrg\T§iBlBI PCBs tamry³xül;dkdegðImEdlman PCBs
b¤edaykar rs;enAkñúg b¤enAEk,rtMbn;rkSaTukkaksMNl;eRKaHfñak;enH. b:uEnþRbPBcMbgrbs; PCBs EdlnaM eTAdl;karKMramkMEhgsuxPaBmnusSKWtamGaharEdlmanpÞúk PCBs
eRBaHfavaCasarFatu EdlmanesßrPaByUrGEgVg nigGacsayPayy:aggaykñúgbrisßan (WWF Factsheet, 2007). RsedogKñanwg DDTs Edr PCBs GacbgáCaeRKaHfñak;F¶n;F¶r nigeRKaHfñak;raMuérbnÞab;BIkarrg \T§iBlvary³eBlyUr. 2>2>2>1 eRKaHfñak;F¶n;F¶rrbs; PCBs
mankarsikSatictYcNas;EdlbgðajBIkMriteRKaHfñak;énkarBulF¶n;F¶rrbs;BYk PCBs.
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dUcKñanwgkMritBulelIstVBiesaFn_Edr lT§PaBEdlvaGacbgáeRKaHfñak;F¶n;F¶rdl;mnusSmanTab Nas;. EteTaHCay:agNa karb:HBal;kMritx<s;GacnaMeTAdl;karrlakRcmuH sYt mansñamCaM nigrlakelIEs,k RBmTaMgbBaðaEPñkpgEdr (Canadian
Ministry of Health, 2005) . KYrkt; sMKal;fa \Ti§Blrbs;vaGaRs½yeTAelIry³eBl brimaN pøÚv (kardkdegðIm karhUbcUl b¤kar b:HBal;) Edlrg\T§iBl nigRbePT PCB enaHpÞal;Etmþg (Government
of South Australia, 2005) . 2>2>2>2 eRKaHfñak;raMuérrbs; PCBs
edaysar PCBs
CasarFatuEdlminrlaykñúgTwk vaRtUv)ansþúkTukkñúgCalikaxøaj;rbs; stV nigmnusSCaCagkarbeBa©jmkeRkAtamry³RbB½n§beBa©jecal. brimaNrbs;vaGacekIn eLIgCabnþbnÞab;kñúgry³eBlmYyyUr (Wisconsin Division of Public Health, 2001) .
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eRKaHfñak;raMuérEdlbgáeday PCBs
rYmman³k> karbgáCMgWmharIk³
ebIeTaHCaminmanPsþútag EdlbgðajedaykarsikSaeGayCak; c,as;k¾eday eKenAEteCOCak;fa PCBs
BitCamanTMnak;TMngCamYykarbgáCMgWmharIk. Pñak;gar GnþrCatisMrab;karRsavRCavelICMgWmharIk (IARC) )ancat;fñak; PCBs
eTAkñúgRkum 2A CamYy nwgkarGHGagfa vaGacbgáCMgWmharIkdl;mnusSedaysMGagelIkarsikSaelIstV (Cinzia et al., 2006) . c,as;CagenH PCBs
bgáeGaymankMNdMusac; (dMumharIk) enAkúñgeføImkNþúrEdl ykmkBiesaFn_ (Richard et al., 2005). CagenHeTAeTot PCBs
CaGñkGenÞakGnÞgeGay mankMNdMuBkmharIk (Tumour initiation)
nigedIrtYnaTICaGñkkMNt;kEnøgkarkekIténdMuBk mharIk (Tumour promotion) pgEdr (WHO Regional Office for Europe, 2000). srIragÁeKaledAénkarbgáCMgWrbs;vaman eføIm bMBg;TwkRbmat; nigxYk,al.
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x> plb:HBal;elIEpñkGakb,kiriya nigkarlUtlas;³ RsþICamþayTTYlTanGaharman PCBs
eRcInkñúgkMLúgeBlBreBaH GacbNþaleGayekµgEdlekItmkmankarlUtlas;yWt y:avEpñkcitþKMnit manGakb,kiriyaxusFmµta nigmanR)aCJaexSay (Wisconsin Division of Public Health,
2001) . K> plb:HBal;elIRbB½n§RbsaT
RbB½n§PaBsauM³ karsikSaBI\T§iBlrbs; PCBs eTAelI RbB½n§RbsaTrbs;mnusS eFVIeLIgeTAelITarkEdlminTan;ekIt ekµgeTIbnwgekIt RBmTaMgmnusS eBjv½ypgEdr. karRsavRCavTaMgenaH)anrkeXIjfa PCBs GacqøgeTATarkkñúgépÞtamry³ TgsukehIynaMeTArkkarbMpøajRbB½n§RbsaTkñúgry³eBlEvg. CagenHeTot edaysarlkçN³ rlaykñúgxøaj;rbs;va PCBs
RtUvbBa¢ÚnBImþayeTAkUntamry³TwkedaH. ehtuplsMxan;énPaB minRbRktIrbs;RbB½n§RbsaT KWfa PCBs
Gacbg¥ak;clnalMhUrrbs;GñknaMsarR52
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bsaT. cMENk plb:HBal;elIRbB½n§PaBsauMvij PCBs
GaceFVIeGaymankarfycuHkMritGg;TIkr IgA nig IgM
RBmTaMgbMErbMrYlrUbragrbs;LaMpUsIut T eTotpg (Agency for Toxic Substances and Disease Registry,
2000). 2>2>2>3 Gnþrkmµrbs; PCBs
CamYysmasFatud¾éTeTotPCBs
CaRKYsarénsmasFatuKImIEdlmanGnuRkumtUc²CaeRcIn ehIyEdlGacsMEdg skmµPaBCIv³rbs;vatamclnkarxus²KñapgEdr. edaysarEtehtuplenH l,ay PCBs
Gac manlT§PaBeRcIny:agkñúgkarEkERbskmµPaBBulrbs;sarFatud¾éTeTot ehIypÞúymkvijGac mansarFatud¾éTCaeRcInEdlGacEkERbskmµPaBBulrbs; PCBs vijEdr.
k> GnþrkmµEdlekItedaysar PCBs
GenÞakGnÞgGg;sIumrbs;eføIm³ lT§PaBrbs; PCBs
kñúgkarGenÞakGenÞagGg;sIum Cytochrome P450
rbs;eføImGacbegáInkarBulrbs;
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smasFatuepSgeTot EdlclnkarBulrbs;vaGaRs½ynwgPaBskmµéndMeNIremtabUlIsrbs; va. Ca]TahrN_ l,ay PCBs
)anCMrujkarbMBuleføImeday Halothane,
Vinylidene fluoride, Diethylnitroamine, Trichloroethylene nig Cabon
tetrachloride CaedIm (Sipes et al., 1987). x> Gnþrkmµrvag PCBs Congeners, PCBs
nig CDDs³ Gnþrkmµrvag PCBs Congeners
PaKeRcInCaGnþrkmµminbEnßm (Nonadditive interaction) mann½yfa PCB yfa RbePTmYyGaceTAbg¥ak;skmµPaBrbs; PCBs mYyeTot dUcCa 2,2’,4,4’,5,5’-hexaCB (10-50 mg/Kg)
GacRbqaMgnwgPaBminRbRktIénGMRb‘Íy:ug nigdMe)AeføImkñúgstVman;EdlrgeRkam \T§iBlén 2 µg/Kg rbs; 3,3’,4,4’,5-pentaCB (Zhao et al.,
1997) . PCBs k¾Gacman GnþrkmµCamYy CDDs pgEdr dUcCakñúgkrNI Arochlors 1242, 1248,
1254, nig 1260 EdlCaRbPBedImrbs; PCBs
EdlrkeXIjkñúgTwkedaHmnusSmanskmµPaBRbqaMgnwgkarGenÞak GenÞageGaymanPaBfycuHéncMelIytbrbs;RbB½n§PaBsaMueRkamGMeBIén 2,3,7,8-TCDD . b:uEnþ Arochlors 1232 minman\T§iBldUcKñaenHeT (Davis and Safe, 1989) .
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K> Gnþrkmµrvag PCBs
nigemTIl)art³ PCBs nigemTIl)art CaPñak;garKImIBIr RbePTEdlGacbgákarBulRbsaT ehIyEdlRtUv)anrkeXIjenAkñúgl,ayénsarFatuBulCIv³ manesßrPaByUr (biopersistent
toxicants) enAkñúgBBYkRtI. BYkvaTaMgBIreFVIkarRsbKña EdlnaMeGaymanbMErbMrYlmuxnaTI nigkarvivtþrbs;RbB½n§RbsaT tamclnkarbM)at;lMnwgGIuy:ug kal;süÚmkñúgekasikaNWr:Un EdlbNaþleGaymanbMErbMrYlkarbeBa©jGñknaMsarRbsaT (]TahrN¾ dU):amIn)
b¤karbMpøajekasikaenaHEtmþg (Agency
for Toxic Substances and Disease Registry, 2000). X> Gnþrkmµrvag PCBs nig p,p’-DDE³ lT§plEdl)anBIkarsikSaelIstV nigelImnusS)anbgðajfa PCBs nig p,p’-DDE
mankarshkarKñaedIm,IbgákarBuleTAelIeføIm (eraKehImeføIm nigmharIkeføIm) RbB½n§PaBsaMu (karTb;kareqøIytbrbs;RbB½n§PaBsaMukñúgkar plitGg;TIkr)
karvivtþrbs;RbB½n§RbsaT
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nigkarbMpøajmuxnaTIrbs;RbB½n§bnþBUC (Agency for Toxic Substances and Disease Registry, 2000).2>3 sMrUb DDTs nig PCBs
kñúgsarBagÁkay2>3>1 sMrUb DDTs kñúgsarBagÁkay
mnusSGacRbQmmuxCamYYysarFatu DDTs
bnÞab;BIsarFatuenHRCabcUleTAkñúgsar BagÁkay. pøÚvsMxan;bIEdlvaGaccUlkúñgxøÜnmnusS)anKW cUltammat; (karelb)
cUltamRcmuH (kardkdegðIm)
cUltamEs,k (karb:HBal;edaypÞal;)
(Agency for Toxic Substances and Disease Registry, 2000). bnÞab;BIcUleTAkñúgRbB½n§RkBHeBaHevon vaRtUv)anbeBa©jeday minmanrgkarbMEbk tamsrésQam nigRbB½n§TwkrégeTACalikaxøaj; nigCalikad¾éTeTot rbs;ragÁkayGaRs½yelIbrimaNxøaj;rbs;srIragÁenaH (WHO, 2004b) . srIragÁsMxan; EdlsMbUrxøaj; ehIymanTMenarx<s;sMrab;karRbmUlpþMúrbs; DDTs rYmman eføIm xYk,al nigCalikaEs,kRsTab;eRkam. DDT
RtUv)anbMEbkCaemtabUlItsMxan;BIrKW DDE nig DDD
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ehIyvaTaMgBIrenHk¾GacbMElgCaemtabUlItepSgeTotpgEdr. GaRs½yelIlkçN³rbs; emtabUlItnImYy²vaGacRtUv)anbnþsþúkkñúgsarBagÁkay b¤RtUv)anbeBa©jmkeRkA ( Sigeyuki et al.,
2002). 2>3>2 sMrUb PCBs kñúgsarBagÁkay
RcksMxan;TaMgbIEdl PCBs
GaccUlkñúgragÁkaymnusSKWdUcKñanwg DDTs Edr. eBl cUleTAdl;kñúgRbB½n§RkBHeBaHevon BYkvaminRtUv)anbMEbkenaHeT EtvaRtUv)andwknaMbnþeTAkan; srIragÁsMxan;²rbs;mnusS ehIyRtUvsþúkRtg;Calikaxøaj;tamry³karRCabcUlkñúgsrésQam nigRbB½n§Twkrég. kMriténsMrUbrbs; PCBs yfaRbePTkñúgxøÜnmnusSfycuHCamYynwgkMenIn énGatUmkør (WHO Regional
Office for Europe, 2000). edayehtufa PCBs
kkKrkúñg Calikaxøaj;rbs;mnusSeyIg vaminRtUv)anbeBa©jmkeRkAsarBagÁkayeT ehIybrimaNrbs;va ecHEtbnþekInrhUt. tamRTIsþI PCBs
CasarFatuEdlBi)akbMEbkkñúgbrisßan
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EtenAkñúgxøÜnmnusS vaGacrgemtabUlIseTACasarFatuepSg²eRkamGMeBIénGg;sIumCaeRcIn. emtabUlItrbs; PCBs
mYycMnYnCasarFatumanesßrPaByUrCag PCBs edImeTAeTot ehIyminRtUv)anbeBa©jecalmk eRkAsarBagÁkayenaHeT. cMENkÉemtabUlItrbs; PCBs
mYycMnYneTotCasarFatuEdlrlay kñúgTwk)an ehIyRtUvbeBa©jecalmkeRkAsarBagÁkay (Larry et al., 2001).
2>4 emtabUlIs DDTs nig PCBs
kñúgsarBagÁkayDDTs nig PCBs
RtUv)aneKsÁal;y:agc,as;fa CaRbePTKImIEdlmanesßrPaBenAkñúg brisßan. EteTaHCay:agenHkþI BYkvak¾GacRtUv)anbMEbkenAkñúgsaBagÁkaymnusSpgEdreTACa smasFatuCaeRcInepSgeToteRkamGMeBIrbs;Gg;sIumCaeRcIn.
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2>4>1 emtabUlIs DDTs
kñúgsarBagÁkayenAkñúgsarBagÁkaymnusS DDT
RtUvRsUby:agelOnecjBIRbB½n§RkBHeBaHevon ehIy RtUvbMElgbnþeTACa DDE nig DDD (Miyamoto et al., 1988). edaysarEt p,p’-DDT CaFatupSMcMbgrbs;fñaMsMlab;stVl¥itEdleRbI dUcenHclnkarénlMnaMemtabUlIsrbs;vaRtUv)an elIkykmksikSa.
kñúgeføIm emtabUlIsrbs; p,p’-DDT
eFVIeLIgtamry³RbtikmµdkkørecjBIm:UelKuledIm ehIybMElgeTACa p,p’-DDE
nig p,p’-DDD (düaRkam 2.1). p,p’-DDE
CaemtabUlItcMbg ebIeRbobeFobCamYy p,p’-DDD
eRBaHfavak¾GacRtUv)anbegáItedaykarbMEbk p,p’-DDD pg Edr. Gg;sIum Cytochrome P450 edIrtYnaTIy:agsMxan;kñúgkarCMrujkarbMElg p,p’-DDT eTACa p,p’-DDD
edaymanvtþman NADPH b¤ NADH. skmµPaBrbs;Gg;sIumenHnwgkan;Etskmµ eLIgeRkamCMnYyBI FMNH2 . KYrkt;sMKal;fa RbtikmµdkGatUmkørdUcKñaenHk¾GacRbRBwtþ
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eTA)anedayminmankarCMrujBIGg;sIum eBalKWvaGacsMerc)aneRkamGMeBIrbs;RkumEGm (Heme group) rbs; Cytochrome P450
pÞal;Etmþg (Sigeyuki et al., 2002). Gg;sIum Dehydrochlorinase dwknaMkarbMElgBI p,p’-DDT
eTACa p,p’-DDE nigBI p,p’-DDD eTACa p,p’-DDMU
pgEdr. cMENkGg;sIum Dehydrogenase
CMrujkarbMEbk p,p’-DDD mkCa p,p’-DDE ( Sigeyuki
et al., 2002). TaMg p,p’-DDE nig p,p’-DDMU
GacRtUvbnþbMEbk CaeRcIndMNak;kareToteTACa p,p’-DDA
ehIybeBa©jmkeRkAsarBagÁkaytamry³TwkRbmat; mkkan;lamk (Miyamoto et al.,
1988).
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düaRkam 2.1 ³ lMnaMemtabUlIsrbs; p,p’-DDT
enAkúñgeføIm ( Sigeyuki et al., 2002)
2>4>2 emtabUlIs PCBs
kñúgsarBagÁkayPCBs
Cam:UelKulEdlmanesßrPaBtamn½yKImIx<s;Nas; ehIyRbePT (Congeners)
xøHmanPaBFn;nwgemtabUlIs. PaKeRcInénsmaCikrbs;RKYsar PCBs
TaMg 209 rgemtabUlIs tamlMnaMRsedogKñamYy.
CMhandMbUgenaHKW lMnaMGuksIutkmµedayGatUmGuksIuEsntamry³Gg;sIum Cytochrome P450 (CYP)
(düaRkam 2.2). CYP
yfaRbePTEdlCMrujGuksIutkmµelI PCBs
yfaRbePT NamYyenaHGaRs½yeTAelIKMrUénkarCMnYsrbs;GatUmkørenAelI PCBs
enaHpÞal;Etmþg (Larry et al., 2001). GatUmGuksIuEsnGacRtUvP¢ab;elIvg;bg;Esnénm:UelKuledIm,IbegáItCaeGb:uksIut b¤CaemtabUlItEdlmanbgÁúMGIuRduksIut (Hydroxylated Metabolite) .
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emtabUlItEdlman bgÁúMGIuRduksIutenHRtUvbMElgbnþCa Glucuronide nig Sulfate Conjugate
tamry³RbtikmµEdl CMrujeday UDP-
glucuronsyltransferase (UGT) b¤ PAPS-Sulfotran-sferase (SULT) . GuIRduksIulkmµrbs;emtabUlItEdlmanbgÁúMGIuRduksIutk¾GacekItmanEdr edaybegáItCa Hydro- quinones nig Catechols. eGb:uksIutEdlbegáIteLIgdMbUgGacrgRbtikmµtMerobeLIgvij (Re-arrangement reaction)
eTACaemtabUlItEdlmanbgÁúMGIuRduksIut (Hydroxylated Metabolite) b¤RtUvbMElgCa Dihydrodiol eRkamGMeBIrbs; Epoxide Hydrolase
(EH) b¤RtUvbMElgCa Glutathione Conjugate
edayRbtikmµEdlr:ab;rgedayGg;sIum Glutathione S-transferase (GST) . Dihydrodiol
GacRtUvrgGuksIutkmµCa Hydroquinones
nig Catechols eday Dihydrodiol Dehydrogenase
rYcbMElgbnþCa Quinones . Glutathione Conjugate
Edl ekItBIeGb:uksIutGacbMEbkedayGg;sIumCaeRcIntameRcIndMNak;karCa Methyl Sulfones nig Mecapturic Acid (Larry et al., 2001).
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CYP : Cytochrome P450 EH : Epoxide HydrolaseDHD: Dihydrodiol Dehydrogenase UGT : UDP-glucuronsyltransferaseGST : Glutathione S-transferase SULT: PAPS-Sulfotransferase
düaRkam 2.2 ³ lMnaMemtabUlIsrbs; PCBs
enAkúñgsarBagÁkay (Larry et al., 2001)
emtabUlIt PCBs dUcCa Mecapturic acid,
Glucuronide nig Sulfate Conjugate
suT§swgEtCasarFatuEdlrlaykñúgTwk ehIyGacbeBa©jecaltamry³lamk Twkenam nigejIs. cMENkÉ emtabUlItEdlmanbgÁúMGIuRduksIut (Hydroxylated Metabolite) xøHGacRtUv )anbeBa©jecal b:uEnþBBYkEdlmanGatUmkøreRcInminRtUv)anbeBa©jmkeRkAeTGaRs½y
Hydroquinones and Catechols Multi-step Pathway
(Several Enzymes)
CYP
63
Epoxide
DHD
Glutathione Conjugate
Polychlorinated Biphenyl
Hydroxylated Metabolite
Dihydrodiol
CYPCYP
GST
Glucuronide and Sulfate conjugate
UGT,SULT
Quinones
Methylsulfones
Mercapturic Acids
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eday PaBcMNUlrbs;vax<s;eTAelIxøaj; EdlGaceGayvaP¢ab;CamYyRbUetGIun)an. MeSO2-PCBs
GacP¢ab;CamYyRbUetGIun ehIyRtUvdwkCBa¢ÚnedayQameTAkan;sYt eføIm nigtMrgenam. Rsedog KñaenHEdr Quinones CaemtabUlItEdlP¢ab;CamYynwg DNA (Chak, 2009) .2>5 clnkarénkarBulrbs; DDTs nig PCBs 2>5>1 clnkarénkarBulrbs; DDTs
2>5>1>1 karBulelIRbB½n§RbsaTDDT
eFVIskmµPaBelImCÄmNÐlRbsaTedaykarraraMglMhUrrbs;GIuy:ugqøgkat;Pñas ekasikaNWr:Un. DDT
GacTaMgBnüakarbiTRckGIuy:ugsUdüÚm nigbg¥ak;TaMgRsugnUvkarebIkRck sMrab;lMhUrénGIuy:ugb:UtasüÚm. CagenHeTot DDT
CaGñkkMritskmµPaBrbs; Adenosine triphosphatase (ATPase) yfaRbePTEdlCaGñkRKb;RKgelIel,ÓnlMhUrrbs;sUdüÚm b:UtasüÚm nigkal;süÚmqøgkat;ekasikaRbsaT. Gg;sIum ATPase
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enHedIrtYnaTIy:agsMxan; kñúgkareFVIb:UElkmµeLIgvijrbs;NWr:Un (Neuronal repolarization) . bEnßmelIenH eKeCOfa DDT
CaGñkeTAraraMglT§PaBkñúgkardwknaMGIuy:ugkal;süÚmkñúgekasikaRbsaT edayP¢ab;elI EpñkGIuRdUpUbrbs; Calmodulin ehIybg¥ak; Ca/Mg ATPase
EtclnkarenHminTan;RtUv )anbBa¢ak;eGayc,as;enAeLIyenaHeT. karBiteTA GIuy:ugkal;süÚmmansarsMxan;Nas;sMrab; karbeBa©jGñknaMsarRbsaT. CarYm DDT
GaceFVImineGaymankarrgb:Uelkmµmkvijrbs; PñasekasikaRbsaT BnüakarbeBa©jGñknaMsarRbsaT EdlnaMeTAdl;PaBminRbRktIénRbB½n§ RbsaT karkRnþak;sac;dMujab;² j½rsac; karRbkac; ebHdUgedIrjab; (Joel,
1990). 2>5>1>2 karBulelIkarlUtlas; nigRbB½n§bnþBUC
karrg\T§iBlBI DDTs
BiesskMuLúgeBlbMElgÉkeTsePTGacmanplb:HBal;y:ag xøaMgelIRbB½n§bnþBUC.
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manlT§PaBbYny:agEdl DDT
Gacbgáplvi)akenH)anKW (1) beBa©j lkçN³dUcGrm:UnePT (2)
bg¥ak;skmµPaBGrm:UnGg;RdUEsn (3)
bBaÄb;pøÚvénkarsMeyaK b¤emta bUlIsrbs;Grm:Un nig (4)
EktMrUvGñkTTYlrbs;Grm:Un. GVIEdlsMxan;enaHKWfa DDT man GnþrkmµCamYyGñkTTYlrbs;Grm:UnGWsRtUEsn nigGg;RdUEsn . CaTUeTA Grm:UnTaMgBIrenH rlaykñúgxøaj;)anl¥Nas; ehIybnSayy:aggayqøgkat;PñasekasikacUleTAkñúgsIutUsul nigéNVy:U. GñkTTYlesþr:UGIutrbs;Grm:UnenHRtUvmanlMnwgrvagsIutUsul nigéNVy:U . kalNa kMupøicGrm:Un-GñkTTYleFVIdMeNIreTAdl;éNVy:U vaeTAP¢ab;CamYyFatucMelIytbGrm:Un (Hormone respone elements) kñúg enhancers b¤ promoters
rbs;EsnEdlRKb;RKgedayGrm:UnenH. kMupøicGrm:Un-GñkTTYledIrtYCaktþacMlgRkmedIm,ICMruj b¤bg¥ak;karcMlgRkmCa mRNA
BIEsn enaH ehIy mRNA
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enHRtUvbkERbCaRbUetGIunsMrab;kMNt;lkçN³rbs;Grm:Unesþr:UGIut. 2>5>2 clnkarénkarBulrbs; PCBs
2>5>2>1 karBultamry³ AhR
AhR CasmaCikrbs;RKYsarGg;sIum basic Helix-Loop-Helix Per (Period)—ARNT (aryl hydrocarbon nuclear translocator)—SIM (single minded): bHLH—PAS mannaTICaGñkEktMrUvktþacMlgRkmTaMgLayEdlRtYtBinitükarvivtþn_ nigdMeNIrrUbdUcCa dMMeNIr RbRBwtþeTArbs;RbB½n§RbsaT kMNekasikabMBg;xül;nigbMBg;RkeBjTwkmat; emtabUlIsCatiBul kareqøIytbnwglkçxNÐkgVHGuksIuEsn nigmuxnaTIrbs;GñkTTYlGrm:Un (Jason et
al.,2006; SABioscience, 2010) . AhR
GacmanlIkg;eRcInRbePTrab;TaMgsarFatuKImIBul dUcCaBBYk GIuRdUkabYGar:Uma:Ticb:UlIsIukøic PAHs (polycyclic aromatic hydrocarbons) b‘ÍepnIlb:UlIkørY (PCBs) nigDIGuksIun (2,3,7,8-TCDD) CaedIm (Cornelis, 2003). kñúgsNæanKµanlIkg; AhR
sßitenAkñúgsItU)aøsrbs;ekasikaeRkamTMrg;CakMupøicBhuRbUetGIunEdlrYmmanm:UelKul hsp90 (a heat shock protein of 90
kDa) cMnYnBIr mYym:UelKul XAP2 (X-associated
protein 2) b¤ ARA9 b¤ AIP
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(EdleKsÁal;faCaRkum Immumophilin-related
protein) nig p23 (23-kDa co-chaperone protein) ( Poca et al.,
2005; Michael et al., 2003) ( rUbPaB 2.3 ) .
rUbPaB 2.3 ³ clnkarénskmµPaBbMBulrbs; PCBs
tamry³karCMrujkarsMEdgén Esneday AhR (Cornelis, 2003)
bnÞab;BIP¢ab;CamYylIkg; AhR
manTMenarkñúgkarbNþÚrkugprma:süúgEdlnaMeGayvakan; EtskmµedaykarbNþac;ecjnUvm:UelKul hsp90 TaMgBIreRkamGMeBIrrbs; NLS
(Nuclear Localization Signal) . lkçN³enHGaceGaykuMpøicén AhR
cUleTAkñúgéNVy:U)any:aggay. eRkayBIcUleTAdl;kñúgéNVy:U bNþMúlIkg;-AhR
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RtUv)anbNþac;ecjBIkMupøicedIm ehIyedayman karcUlrYmBIm:UelKul ARNT (Aryl Hydrocabon Receptor Nuclear Translocator) eFVIeGay AhR elcecjnUvTMrg; heterodimer
EdlmanTMenarx<s;kñúgkarP¢ab;CamYYym:UelKul DNA. GVIEdlCabBaðaFMbMputenaHKWenARtg;fa kuMpøiclIkg;-AhR (kñúgkrNIenH PCBs CalIkg;) eTAP¢ab;CamYy XRE (xenobiotic-
responsive element) EdlsßitkñúgtMbn; Promoter
énEsn TaMgLayNaEdlGacEktMrUvedayskmµPaB AhR
elIdMeNIremtabUlIsénsarFatucMELk. CalT§pl va)annaMeGayekItmankarekIneLIgénkarsMeyaKRbUetGIunEdledIrtYCaGg;sIumdUcCa CYP1A1 (Cytochrome P450 Family-1 Subfamily-A Polypeptide-1), CYP1A2 (Cytochrome P450 Family-1 Subfamily-A Polypeptide-2), CYP1B1 (Cytochrome P450 Family-1 Subfamily-B Polypeptide-1) nig NAD(P)H-Quinone Oxidoreductase
CaedIm (Michael et al., 2003; Cornelis , 2003; Poca et al.,
2005; SABioscience, 2010). Gg;sIumTaMgenHRtlb;eTAeFVIemtabUlIs PCBs
vijeTACasarFatuEdlBulkan;EtxøaMg ehIyRbmUlpþMúkñúgsarBagÁkay. 2>6 lkçN³rbs;xüg ex©A
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2>6>1 lkçN³rbs;xüg (Apple Snails: Pomacea spp.)
Apple snails
CastVTwkEdleKsÁal;eRcInesÞIrBaseBjBiPBelak edaysarEtlkçN³ sMGatTwk (aquarium cleaning feeding habitats)
nigPaBTak;TajelIrUbrag TMrg; nigTMhMrbs; va ehIyvak¾CaRbePTxügTwksabEdlmanTMhMFMCageKbg¥s;Edr. vaGacmanBN’epSg²BIetñat eTACaBN’ePOk (albino) b¤elOg b¤exovpgEdr. man Apple snails RbEhl 120
RbePTEt RbePTEdleKsÁal;CaTUeTAenAGasIuKWBBYk Pomacea canaliculata EdlTMhMFMbnþic mUl ehIy sIurukçCatiTwkCaGahar (Charles, 2002). vaRtUv)aneKsÁal;dMbUgenATsvtSqñaM 1980 enAétv:an; ehIyvtþmanrbs;vacab;epþImraldalmkbNþaRbeTsCaeRcInenAGasIudUcCa cin (1985) \NÐÚensIu (1989) éf (1989) evotNam (1988) Lav (1992) nigkm<úCa (1995). enAkñúgRbeTskm<úCa eKsegáteXIjvtþmanrbs;vaenAkEnøgciBa©wmxügPaKeRcInkñúgraCFanIPñMeBj nigtamvalERstam
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bNþaextþdUcCa sVayerog kMBg;cam kMBg;qñaMg taEkv kNþal CaedIm (Chanty, 1998). xügRbePTenHRtUv)ancat;TukfaCastVcéRgEdlbMpøajRsUv Rtav RtkYn nigdMNaMelITwkd¾éT eTot (Robert, 1997)
( rUbPaB 2.4 ).
rUbPaB 2.4 ³ rUbPaB nigkayviPaKviTüarbs; Pomacea canaliculata
Apple snails
Gacrs;enAkñúgkEnøgepSg²dUcCa valPk; RbLay RsHTwk bwg nigTenø pgEdr. EtGIVEdlKYreGaykt;sMKal;enaHKWfa vacUlcitþrs;enAkEnøgEdlmanTwknwg CagTwk EdlhUr ehIyGakasFatuenAtMbn;RtUBicEdlmanrdUvePøóg
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nigrdUvR)aMgGnueRKaHdl;karlUtlas; rbs;vaNas;. Apple snails
Gacrs;enACaCIvitskmµeBjmYyqñaM b¤rs;enAkñúgCIvitRkaMgGaRs½y elIlkçxNÐbrisßandUcCa sItuNðPaB kMritTwkePøóg nigGahar. enAkñúgkMLúgénry³eBlCIvit RkaMg vakb;xøÜnvaeTAkñúgPk; ehIydMeNIremtabUlIsrbs;vaRtUvfycuH. Apple snails CastV sIurukçCatiCaGahar CaBiessRbePTbEnøTn;² nigBBYkvarICatid¾éTeTotedayeRbIcegÁamrbs;va. ebIeTaHCa rUbragénRbB½n§eFµjrbs;vaGacnwgdUcKñacMeBaHRKb;RbePTTaMgGs;k¾eday k¾enAman RbePTxøHEdlmaneFµjFMCag nigrwgCagRbePTepSgEdr. viFImYyeTotEdl Apple snails eRbI edIm,Icab;ykGaharKWkareRcaH (Surface film feeding)
enAeBlEdlGaharGENþtEk,rxøÜnva. vaRtUvlUneTAcMNucEdlmanGahar ehIyekþabmat; (foot-funnel)
vaEdleBlenaHPaKl¥itCa cMNIRtUv)ancab;yk ehIyelbcUl. vak¾GacsIus‘utrbs;va
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RBmTaMgstVTwkEdlgab;dUcCa RtI kEgáb kþam nigstVl¥itRKb;RbePT. vdþénkarbnþBUCGaRs½yelIPaBsMbUrénGahar nigkMrit sItuNðPaBrbs;TwkEdlvars;enA. karvivtþn_BIs‘uteTACaxügeBjv½yGaccMNayeBlticCag bIEx ehIyvabnþBUC)aneBjmYyqñaM. cMnYns‘utEdlvabeBa©jeBlbnþBUCmþgGacmanBI 100 eTA 1000 .
2>6>2 lkçN³rbs;ex©AkarBiteTA
mankarsikSatictYcNas;EdlbgðajBIlkçN³rbs;ex©A ehtuenHlkçN³rbs; vaminRtUv)anbkRsayeGayBisþarenaHeT. ex©ACastV\tq¥wgkgsßitenAkñúgfñak; Gastropoda
CamYyxügEdr ehIyRtUv)anEbgEckCaRbPTepSg²GaRs½yelIlkçN³rbs;va (MRC, 2006). PaKsMNakex©AEdleRbIsMrab;karRsavRCavenHCaRbePTex©Abwg Pachydrobia spp.
( rUbPaB 2.5). karrs;enArbs;vaPaKeRcInBwgEp¥kelIkarsIurukçCatiTwkdUcCasaray b¤edaykaretagCab;
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CamYyrukçCatiTaMgenH. vak¾GacRsUbykPaKl¥ittUc²EdlGENþtkñúgTwkpgEdr (lkçN³Ca Filter-feeders). TwkGacRsUbcUltammat;cUleTAEpñkxageqVgén mantle cavity ehIIyqøgeTA xagsþaMedaynaMeTACamYynUvkaksMNl;BIsrIragÁenH (MRC, 2006).
rUbPaB 2.5 ³ rUbPaBrbs; Pachydrobia spp.
2>7 RTIsþIviFIRkUm:atURkahVItamniymn½y
RkUm:atURkahVICabec©keTsviPaKEdleRbIsMrab;EjksarFatuKImIecjBI l,ayrbs;va edayEp¥kelIeKalkarN_sMrUbeRCIs (Microsoft Stusent, 2009) . kñúgviFIenH pascl½tCaGñknaMl,aysmasFatuviPaKeGayqøgkat;pasnwg. edaysarEtGnþrkmµrbs;va CamYYypasnwg nigpascl½t
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smasPaKrbs;l,ayeFVIdMeNIrkñúgel,ÓnepSg²KñaeBlhUrkat; kUeLanviPaK ehIyedaysarehtuplenHehIyEdlvaRtUv)anEjkecjBIKña. GaRs½yeTAelI RbePTpasnwg nigpascl½tEdleRbI viFIRkUm:atURkahVIRtUv)anEbgEckCaeRcInRbePTdUcCa RkUm:atURkahVIGgÁFaturav (Liquid
chromatography) nigRkUm:atURkahVI]sµ½n (Gass gromato-graphy) CaedIm (Mary et al., 2005). Etedayehtufa karRsavRCavenHeRbIEtviFIsaRsþ RkUm:atURkahVIGgÁFaturav dUcenHmanEtviFIsaRsþenHeTEdlRtUvelIkmkBN’na.
2>7>1 viFIRkUm:atURkahVIGgÁFaturav³ m:asIun HPLC
RkUm:atURkahVIGgÁFaturav eRbIpascl½tCaGgÁFaturavsMrab;dwknaMl,ayviPaK ehIyeKal karN_enHRtUv)anGnuvtþn_kñúgkarEjkedaym:asIun HPLC (High Performance Liquid Chro-
matography). pascl½trbs; HPLC
CaGñkrMlaysarFatuviPaK ehIyRtUvrujeGayeFVIdMeNIr
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eTAmuxedayeRbIsMBaFx<s;qøgkat;kUeLanEdlBasedayPaKl¥ittUc² ehAfapasnwg (Mary et al.,
2005). ]bkrN¾edIredaykUeLanRbePTenH PaKeRcIneRbIenAkñúgEpñk KImICIv³ nigKImIviPaK edIm,IEjk eFVIGtþsBaØaNkmµ nigkarkMNt;brimaNsmasFatu. smasFatuEdlmingayehIr manm:UelKulFM² nigmingaybMpøajedaykMedAdUcCa DDTs nig PCBs CaedIm GacEjk)an y:agl¥edaym:asIun HPLC. 2>7>2 eKalkarN_TUeTArbs;m:asIun HPLC
kñúglMnaMviPaKedayeRbI HPLC
eKcak;bBa©ÚlPaKsMNakkñúgbrimaNmYytictYc ehIy PaKsMNakenHnwgRtUvnaMeGayhUrqøgkat;kUeLanedaypascl½t. KYrkt;sMKal;fa lMhUrrbs; FatuviPaKqøgkat;kUeLanGacelOn b¤yWtGaRs½yelIFmµCatiénFatuviPaK pasnwg nigsmas PaKrbs;pascl½t. ry³eBlEdlFatuviPaKmYycMNayedIm,IqøgputkUeLanBI injector dl; detector ehAfa Retention
time . mü:ageTot
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eKsegáteXIjfaeRkamlkçxNÐviPaKmYy sarFatunImYYy²EtgEteGay retention time
xusKña. Ep¥kelIeKalkarN_enH eK)ansnµtfa retention time
rbs;FatuviPaKmYyeRkamlkçxNÐmYyCak;lak; KWCalkçN³sMKal;dac;eday ELkrbs;sarFatuenaH. FaturMlayEdleKniymeRbIKWCal,ayénTwk nigsarFatusrIragÁ d¾éTeTotEdlPaKeRcInCa emtaNul nigGaestUnIRTIl. kareRCIserIsFaturMlaymkeRbIkñúg karEjkGaRs½yeTAelIFmµCatiénpasnwg niigFatuviPaK (Preyde et al., 2001). 2>7>3 smasPaKsMxan;²rbs;m:asIun HPLC smasPaKsMxan;²rbs; HPLC
rYmmanFugdak;pascl½t (reseviors), sñb; (pump), kEnøgcak;bBa©Úl (injector), kUeLan (Column) , detector nig recorder ( rUbPaB 2.6). eRkABIenH eKGacbMBak;bEnßmnUvEpñksMxan;epSg²mYycMnYneTotdUcCa Fraction controller
pgEdr RbsinebIeKRtUvkarrkSaTukFatuviPaK b¤m:UelKulbnSúT§CaEpñk². cMENkÉsmasPaKd¾éT eTot
77
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GacRtUvbMBak;bEnßmpgEdredIm,IbegáInRbsiT§PaBEjk nigry³eBleRbIR)as;rbs;RbB½n§ (Larry,
2003).
rUbPaB 2.6 ³ eKalkarN_TUeTA nigEpñksMxan;²rbs; HPLC
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rUbPaB 2.7 ³ m:asIun HPLC
2>7>3>1 kEnøgcak;PaKsMNakrbs;m:asIun HPLC
kEnøgcak;PaKsMNak (Injector)
rbs;m:asIun HPLC
EdleRbIkñúgkarRsavRCavCaRbePT valve
switch Edlman Loop . Loop
RtUv)aneRbIedIm,IeGaymanPaBR)akdmYykMriteTotfa maDrbs;PaKsMNakEdl)ancak;bBa©ÚlmanmaDefrnigRtwmRtUvl¥ ( 20 µL b¤ 50
µL). Valve
rbs;kEnøgcak;PaKsMNakmanTItaMgBIrKW TItaMg LOAD nigTItaMg INJECT. eBlEdl injection valve sßitkñúgTItaMg LOAD
PaKsMNakRtUvdak;cUl (loaded)
tamry³sIuraMgeTAkan; loop xagkñúg ehIyvaRtUv)anrkSaTukkúñgbrimaNCamaDCak;lak;mYy. cMENk pascl½thUr edaypÞal;ecjBI pump
eTAkan;kUeLankúñgsMBaFx<s;. enAeBl valve RtUvrgVileTAkan;TItaMg INJECT enaH loop
nwgkøayCaEpñkrbs;lMhUr (ebIksnÞH)
ehIybnÞab;mkpascl½tnaM
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PaKsMNakcUleTAkñúgkUeLan ( rUbPaB 2.8).
rUbPaB 2.8 ³ kEnøgcak;PaKsMNak (Injector) rbs; HPLC Rtg;TItaMg LOAD
nigTItaMg INJECT tamerog
2>7>3>2 kUeLan COSMOSIL PYE
rbs;m:asIun HPLC
kUeLan COSMOSIL PYE CaRbePTkUeLan Reversed-phase rbs;m:asIun HPLC
EdlRtUv)aneRbIR)as;y:agTUlMTUlayedaysarEtRbsiT§iPaBénkarEjkrbs;va PaBgayRsYl kñúgkareRbIR)as; nigmantMélsmrmü (HPLCweb.com, 2004). kUeLanRbePTenHmanpas nwgCaRkumBIEr:nbøg; b¤ 2-(1-pyrenyl)ethyl
cgP¢ab;edaysMB½n§KImICamYysuIlIka (rUbPaB 2.9). kUeLan PYE
mansmtßPaBkñúgkarEjksmasFatuEdl80
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manlkçN³RsedogKña)anl¥ GaRs½y edayGnþrkmµ EdlbegáItedayvg;BIEr:n. eRkABIenH vaGacbegáItGnþrkmµCaeRcIneTot CamYysarFatukñúgl,ayEjkEdlCYybegáInTinñplEjkpgEdrrYmman GnþrkmµGIuRdUpUb Gnþrkmµ benÞrbnÞúk nigPaBCMerIsénesþer:GU (Stereo selectivity)
(HPLCweb.com, 2004).
Pyrenylethyl group
rUbPaB 2.9 ³ pasnwgrbs;kUeLan COSMOSIL PYE
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rUbPaB 2.10 ³ kUeLan COSMOSIL
PYE EdleRbI
82
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CMBUk3 dMeNIrkarBiesaFn_3>1 TItaMgRbmUlPaKsMNak
karRsavRCavenH eyIgepþateTAelItMbn;sikSabIKW TenøemKgÁ (extþkMBg;cam)
bwgTenøsab (extþkMBg;qñaMg)
nigbwgeCIgÉk (RkugPñMeBj). PaKsMNakex©A xüg EdlRbmUl)anBItMbn;sikSa TaMgbIRtUv)anykmkeFVIBiesaFn_edIm,IkMNt;rkbrimaNrbs; DDTs nig PCBs
edayeRbIR)as; m:asIun HPLC-UV/vis
Ca]bkrN_sMrab;viPaK. PaKsMNakex©A xüg
EdlykmkviPaKsMrab;karRsavRCavenHRtUvRbmUlkñúgkalbriecäT xusKñatamtMbn;nImYy². xageRkamenHCaEpnTIénRBHraCaNacRkkm<úCa ehIykñúgEpnTIenH bgðajBItMbn;EdlPaKsMNakRtUv)anRbmUltamsBaØasMKal;dUcCa³ tMbn;TenøemKgÁ (extþkMBg;cam)
tMbn;bwgTenøsab (extþkMBg;qñaMg)
tMbn;bwgeCIgÉk (RkugPñMeBj)
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rUbPaB 3.1 ³ EpnTIRbeTskm<úCatMbn;TenøemKgÁ
(extþkMBg;cam)³ PaKsMNaksMrab;viPaKRtUvRbmUlBIPUmisMbYrmas XMuBamCIkg RsukkgmasCakEnøgTImYy nigPUmikMBg;sMNaj; XMuemon RsukéRBQr (bwgFM) CakEnøgTIBIr. KYrbBa¢ak;fa bwgFMenHtP¢ab;CamYyTenøemKgÁtamry³crnþTwkEdlhUrecjcUl tamry³ERBkcMnYnbIsMxan;²
84
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ehIybwgenHk¾CaRbPBsMxan;mYyénplensaTex©AxügpgEdr.
(a)
(b)
85
kEnøgTI1
kEnøgTI2
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rUbPaB 3.2 ³ EpnTI (a)PUmisMbYrmas XMuBamCIkg RsukkgmasCakEnøgTImYy nig
(b) PUmikMBg;sMNaj; XMuemon RsukéRBQrCakEnøgTIBIr
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tMbn;bwgTenøsab (extþkMBg;qñaMg)³ PaKsMNaksMrab;viPaKRtUvRbmUlBIPUmiqñúkRTU XMuqñúkRTU RsukbribUrN_ edaykMNt;yktMbn;mat;bwgTenøsabCakEnøgTImYy nigtMbn;kñúg bwgTenøsabCakEnøgTIBIr.
87
Chhok Tru
Tonle Sap Great Lake
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rUbPaB 3.3 ³ EpnTIPUmiqñúkRTU XMuqñúkRTU RsukbribUrN_
extþkMBg;qñaMg
tMbn;bwgeCIgÉk (RkugPñMeBj)³ PaKsMNaksMrab;viPaKRtUvRbmUlBIkEnøgepSgKñarbs; bwgeCIgÉk edaykMNt;yktMbn;muxTwkhUrBIsßanIy_bgðÚrkaksMNl;bwgTMBunCakEnøgTImYy tMbn; muxTwkhUrBIsßanIy_bgðÚrkaksMNl;bwgRtEbkCakEnøgTIBIr tMbn;kNþalbwgCakEnøgTIbI nigtMbn; muxTwkhUrecjBIbwgeq<aHeTAkan;Tenø)asak;CakEnøgTIbYn.
88
kEnøgTI1 kEnø
gTI2kEnøgTI3
kEnøgTI4
Basac River
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rUbPaB 3.4 ³ EpnTItMbn;bwgeCIgÉk (RkugPñMeBj)
3>2 karRbmUlPaKsMNakkñúgdMeNIrkarRsavRCavenH
edayehtufaTItaMgsikSaTaMgbIsßitenAq¶ayBIKña karRbmUl PaKsMNakRtUveFVIeLIgmYykEnøgmþg² CabnþbnÞab;tamkalbriecäTxusKña. elIsBIenHeTotenA tamtMbn;sikSanImYy² cMnYn brimaN nigRbePTPaKsMNakRtUvykmkBIkEnøgtUc²epSgKña GaRs½yelIPaBEdlGacrk)anrbs;va.PaKsMNak)anBIbwgTenøsabextþkMBg;qñaMg RtUvRbmUlenAéf¶TI 18 nig 19
ExkumÖ³ qñaM 2010. PaKsMNakenAtMbn;enHmanEtRbePTex©AmYymuxeT
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eBalKWKµanPaKsMNakxügeLIy. PaKsMNakex©AenH RtUvEbgEckCaBIrRbePTGaRs½yelITIkEnøgEdlvars;enAKW ex©Ars;enAtam dIxSac;kñúgbwgTenøsab nigex©Ars;enAtamdIxSac;tambeNþaymat;bwgTenøsab. cMeBaHkarRbmUl ex©Akñúgbwg eyIg)anCYlGñkensaTEdlmanTUkeGayCYyeyIgkñúgkarRbmUlex©ATaMgenaH. kar RbmUlenHeFVIeLIgedaykarravedayéd edaymuCcuHeTAdl;)atbwg nigedaykareRbIkERBa©gsMrab; dg. cMENkÉ ex©Atammat;bwgRtUvRbmUledaykarerIsedayédEtmþg edaysarvars;enAtam beNþayRcaMgmat;bwgTenøsab. CalT§pl eyIgTTYl)anex©ARbEhl 2 Kg
sMrab;RbePT nImYy² (rUbPaB 3.5). ex©AEdlRbmUl)anRtUvykmkRtaMkñúgTwkry³eBlmYyyb;edIm,IeGayva R)akdfaminmandIxSac; b¤l,ab;enAkñúgxøÜnrbs;vaeLIy. bnÞab;mk RtUvRckdak;kñúgfg;)aøsÞic rkSa
90
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TukkñúgFugTwkkk ehIydwkCBa¢Únmkkan;TIBiesaFn_RsavRCavénsaklviTüal½yPUminÞPñMeBj edayrkSakñúgTUrTwkkkenAsItuNðPaB 25ºC eRkamsUnü.
rUbPaB 3.5 ³ skmµPaBRbmUlPaKsMNakenAbwgTe
nøsabextþkMBg;qñaMg
cMeBaHPaKsMNak)anBITenøemKgÁextþkMBg;cam RtUvRbmUlenAéf¶TI 6 nigTI 7 Exemsa qñaM 2010. dUcKñanwgPaKsMNakEdl)anBIbwgTenøsabEdr KµanPaKsMNakxügeTsMrab;tMbn;sikSa enH. ex©AEdl)anBITenøemKgÁ PUmisMbYrmas XMuBamCIkg Rsukkgmas CaRbePTex©AdUgEdl rs;enAelIdIxSac;. karRbmUlPaKsMNakenAkEnøgenHRbRBwtþeTAenAéf¶TI 6 Exemsa qñaM 2010.
91
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eyIg)anCYlGñkensaTrs;enAtMbn;enaH edayeRbI]bkrN_ensaTehAfa G‘uy GUskñúgépÞTenø emKgÁkñúgcMgayRbEhl 500 m
eTAmkcMnYn 3 Rtlb; eTIbelIkBIépÞTwkedIm,IRbmUlykex©A. CalT§pl eyIgTTYl)anex©ARbEhl 5 Kg. cMENkÉ ex©AEdl)anBItMbn;bwgFMrbs;PUmikMBg; sMNaj; XMuemon RsukéRBQr CaRbePTex©AbwgEdlrs;enAkñúgdIl,ab;. karRbmUlPaKsMNak enATItaMgenHeFVIeLIgenAéf¶TI 7
Exemsa qñaM 2010. ]bkrN_Qñagb¤sSIRtUv)aneRbIedIm,IGUsyk ex©ABI)atbwgkñúgépÞdIRbmaN 40 m
bYnRCug cMnYnBIrelIkepSgKña. CalT§pl eyIgRbmUl)an PaKsMNakex©ARbmaN 3 Kg (rUbPaB 3.6). ex©AEdlRbmUl)anBITItaMgTaMgBIrRtUvykmk RtaMkñúgTwkry³eBlmYyyb;edIm,IeGayvaR)akdfaminmandIxSac; b¤l,ab;enAkñúgxøÜnrbs;va eLIy. bnÞab;mk RtUvRckdak;kñúgfg;)aøsÞic
92
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rkSaTukkñúgFugTwkkk ehIydwkCBa¢Únmkkan;mnÞIr TIBiesaFn_RsavRCavénsaklviTüal½yPUminÞPñMeBj edayrkSakñúgTUrTwkkkenAsItuNðPaB -25 ºC sMrab;ykeTAviPaK.
(a) (b) (c)
rUbPaB 3.6 ³ skmµPaBRbmUlPaKsMNakenATenøe
mKgÁextþkMBg;cam (a)
karGUseday]bkrN_ G‘uy (b) karGUsedayQñagb¤sSI
(c)ex©AEdlRbmUl)an
PaKsMNakBIbwgeCIgÉk RtUvRbmUlenAéf¶TI 10 TI 11 nig TI 12
ExmIna qñaM 2010 sMrab; TItaMgTImYYy TIbI nigTIbYn nigéf¶TI 7
Ex]sPa qñaM 2010 sMrab;TItaMgTIBIr. pÞúyBIPaKsMNakEdl )anBItMbn;sikSaTaMgBIrxagelI PaKsMNakBIbwgeCIgÉkmanEtRbePTxügeTEdlGacrk)an
93
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ehIyKµanPaKsMNakex©AeLIy. xügTaMgenHminrs;enAkñúgdIl,ab;)atbwgeT vars;enAeday etagCab;RtkYn kEBaät nigrukçCatiTwkenAkñúgbwg. eKGacrkva)anedaygayenAtamrg RtkYnEdldaMenAelIépÞbwgEtmþg. cMeBaHTItaMgnImYy² PaKsMNakxügRtUvRbmUledaykarerIs edayéd elIépÞbwgRbEhl 90 m kaer. CalT§pl eyIgTTYl)anPaKsMNakkñúgbrimaN RbEhl 2 eTA 3 Kg sMrab;TItaMgnImYy² (rUbPaB 3.7). PaKsMNakEdlRbmUl)anRtUv)an lagsMGat ehIydwkCBa¢ÚnmkTIBiesaFn_RsavRCavénsaklviTüal½yPUminÞPñMeBj nigRtUvrkSa kñúgTUrTwkkkenAsItuNðPaB -25ºC.
rUbPaB 3.7 ³ skmµPaBRbmUlPaKsMNakenAbwgeCI
gÉk
94
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srubCarYm kñúgkarRsavRCavenHmanPaKsMNakcMnYn 8 EdlkñúgenaH 4
CaPaKsMNakex©A (2
mkBITenøemKgÁextþkMBg;cam nig 2
mkBIbwgTenøsabextþkMBg;qñaMg)
nig 4 CaPaKsMNakxüg (mkBIbwgeCIgÉk) (düaRkam 3.1).
düaRkam 3.1 ³ RbePTPaKsMNakTaMg 8
PaKsMNaknImYy²RtUveFVIviPaK (eyabknigsMritsMraMg) cMnYnbIdg (triplicates) ehIy kñúgmYyelIk²RtUvviPaK (Inject) CamYym:asIun HPLC cMnYnbIdgEdr (düaRkam 3.2).
95
TenøemKgÁkMBg;
cam 2
PaKsMNakTaMg
8PaKsMNakex©A 4
PaKsMNakxüg
4
bwgTenøsabkMBg;q
ñaMg 2kEnøgTI 1
kEnøgTI 2
kEnøgTI 1
kEnøgTI 2
kEnøgTI 1
kEnøgTI 2
kEnøgTI 3
kEnøgTI 4
bwgeCIgÉkma
n 4
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düaRkam 3.2 ³ viFIsaRsþviPaKelIPaKsMNaknImYy²
3>3 kareRCIserIsviFIsaRsþviFIsaRsþEdleRbIedIm,IkMNt;brimaN DDTs nig PCBs maneRcInsMrab;PaKsMNak RbePTxusKña. b:uEnþPaKeRcInénviFIsaRsþTaMgenaH TamTareGaymannUvsMPar³TMenIb² mantMél x<s; eRbIPaKsMNakeRcIn ehIycMNayry³eBlyUreTotpg. kñúgkarRsavRCavenH eyIg)an eRCIserIsykviFIsaRsþEdlBN’naeday Bart (2008)
edaymankarEkERbtictYcelIEpñkxøHpg Edr. KYrbBa¢ak;pgEdrfa viFIsaRsþenHRtUv)anGPivDÆn_BIviFIsaRsþEdlesñIreLIgeday Buzitis et al., (2006) nig
96
PaKsMNakm
PaKsMNakm
YyviPaKelIkTI 2
cak;bIdg
viPaKelIkTI 3
cak;bIdg
viPaKelIkTI 1
cak;bIdg
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Margaret et al., (1994) EdleRbIsMrab;kareyabk nigsMritsMraMgBBYk DDTs nig PCBs
ecjBICalikaRtI nigstVTwkd¾éTeTotdUcCa xüg ex©A CaedIm edayeRbIry³eBlxøI ]bkrN_minsUvéfø GacviPaK)anCamYyPaKsMNak brimaNtic ehIyeGaylT§plGacTTYl yk)an (Buzitis et al., 2006; Margaret et al., 1994). 3>4 karerobcMsarFatuKImIsMrab;dMeNIrkarBiesaFn_3>4>1 karerobcMemS:AsIulIkasMrab;karsMritsMraMg
PaKsMNakEdleFVIeyabkrYcehIy RtUvqøgkat;dMNak;karsMritsMraMgmþgeTotedayeRbI kUeLanEjkEdlmanpÞúkemS:AsIulIkaskmµGasIut )as nigNWt. dMbUgemS:AsIulIkaRtUvykeTA dutkMedAkñúgm:asIunkMedA (Oven)
enAsItuNðPaB 130 ºC ry³eBl 16 em:ag enaHeyIgnwgTTYl )anemS:AsIulIkaskmµ. bnÞab;mkemS:AsIulIkaskmµenH RtUvrkSaTukkñúgcansMrUbTwk (Desicator)
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rhUtRtCak;l¥ eTIbykmkerobcMsMrab;TegVIemS:AsIulIkaskmµGasIut nig)as. bnÞab;BIeRbIR)as; rYc emS:AsIulIkaskmµEdlenAsl;RtUvrkSaTukkñúgLsMgYt (Oven) vij. cMENk emS:AsIulIka skmµGasIut nig)ask¾RtUvrkSaTukkñúgcansMrUbTwksMrab;eRbIR)as;elIkeRkayeTotEdr (rUbPaB 3.8). 3>4>1>1 karerobcMemS:AsIulIkaskmµGasIut
emS:AsIulIkaGasIut CaemS:AsIulIkaskmµEdlRtUveP¢akeday 40 PaKryénGasIut s‘ulpYricxab;. edIm,ITegVIemS:AsIulIkaskmµGasIut RtUvføwg 30 g
emS:AsIulIkaskmµEdlykecjBI cansMrUbTwk (Desicator)
dak;kñúgEkvEG‘kELn rYcbEnßm 20 g
énsUluysüúgGasIuts‘ulpYric xab; (98%) . bnÞab;mkbitKMrbeGayCit rYcRkLúkeGayxøaMgrhUtdl;emS:AsIulIkaTaMgGs;RtUv eP
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¢aksBVl¥edaysUluysüúgGasIut (Bart, 2008;
Chak , 2009) . 3>4>1>2 karerobcMemS:AsIulIkaskmµ)as
emS:AsIulIka)as CaemS:AsIulIkaskmµEdlRtUveP¢akeday 36 PaKryénsUluysüúg b:UtasüÚmGIuRduksIut. edIm,ITegVIemS:AsIulIkaskmµ)as RtUvføwg 32 g emS:AsIulIkaskmµEdlyk ecjBIcansMrUbTwk (Desicator)
dak;kñúgEkvEG‘kELn rYcbEnßm 18 g
énsUluysüúgb:UtasüÚm GIuRduksIut KOH (1N) . bnÞab;mk bitKMrbeGayCit rYcRkLúkeGayxøaMgrhUtdl;emS:AsIulIka TaMgGs;RtUveP¢aksBVl¥edaysUluysüúgb:UtasüÚmGIuRduksIut (Bart, 2008; Chak , 2009) .3>4>1>3 karerobcMemS:AsIulIkaskmµNWt
emS:AsIulIkaskmµNWt CaemS:AsIulIkaskmµEdlykecjBIcansMrUbTwk (Desicator)
ehIyminmanbEnßmGVITaMgGs; (Bart, 2008;
Chak , 2009) .
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rUbPaB 3.8 ³ emS:AsIulIkaskmµTaMgbIRbePTRtUvrkSaTukkñúgcansMrUbTwk (Desicator)
3>4>2 karerobcMsUluysüúgd¾éTeTotbEnßmelIkarerobcMemS:AsIulIkaskmµxagelI viFIsaRsþenHtMrUveGaymankareRtomTukCa munnUvsUluysüúgFaturMlaymYycMnYneTotsMrab;dMeNIrkareyabk sMritsMraMg nigkareyabk lIBItBIPaKsMNakKW Gicsan³b:g;tan smamaRt 1:1 CamaD (V/V)
Gicsan³DIkør:Uemtan (DCM) smamaRt 1:1
CamaD (V/V) nig kør:Upm³emtaNul smamaRt 2:1 CamaD (V/V) tamerog.
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3>5 karsakl,gviFIsaRsþebIeTaHCaviFIsaRsþEdl)aneRCIserIsenH RtUv)anesñIreLIgnigGnuvtþn_CamYyPaKsMNak dUcCa RtIedaykarRsavRCavmYycMnYnehIyk¾eday vaCakarcaM)ac;Nas;EdlRtUvsakl,gCamYy PaKsMNakxüg nigex©ApÞal;Etmþg. karsakl,gviFIsaRsþenH RtUveFVIedIm,IeGayR)akdfa viFIsaRsþenHBitCaGacGnuvtþn_elIPaKsMNakRsavRCavR)adkEmn. tamry³karsakl,genH eyIgnwgKNnatMélPaKry Recovery
rbs;dMeNIrkareyabk nigsMritsMraMgPaKsMNaktam ry³épÞBicrbs; 1,2,3,4-TCDD (1,2,3,4-tetrachlorodibenzo-p-dioxin)
EdleRbICa Internal Standard
cak;munkareyabknigépÞBicrbs;vaEdlcak;pÞal; vas;eday]bkrN_ HPLC. 3>5>1 dMeNIrkareyabk
1. erobcMbMBg;sakrgVilcakp©itEdlmanKMrbcMnYn 4 dUc²Kña
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2. føwgPaKsMNak 0.4g
dak;eTAkñúgbMBg;saknImYy²3. cak;l,ayGicsan³b:g;tan smamaRt
1:1 (V/V) cMnYn 5 mL cUlkñúgbMBg;sak nImYy²
4. bUmsUluysüúg 1,2,3,4-TCDD kMhab; 100
ng/µL cMnYn 20 µL eTAkñúgbMBg;sak nImYy²
5. føwg 1.25 g
énRkamGMbilsUdüÚms‘ulpat (Na2SO4) dak;kúñgbMBg;rgVilcakp©it nImYy²
6. RKbKMrbbMBg;TaMgGs;eGayCitl¥
7. RkLúkbMBg;sakeGaysBVl¥edayeRbIéd nigma:sIun Vortex ry³eBl 2
naTI8. ykbMBg;PaKsMNakTaMgbYneTA
rgVilcakp©it enAel,Ón 2500 rpm
(CMukñúgmYynaTI) ry³eBl 5 naTI9. epÞrFaturMlaykñúgbMBg;TaMgb
YncUlKña dak;kñúgbMBg;sakEvgmYycMNuHRbmaN 100 mL
10. dak;l,ayGicsan³b:g;tan smamaRt 1:1 (V/V) cMnYn 5 mL cUlkñúgbMBg;sak
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nImYy² rYceFVIsareLIgvijBICMhan 6 dl; 9
sMrab;kareyabkelIkTI 2 . 11. dak;l,ay Gicsan³b:g;tan
smamaRt 1:1 (V/V) cMnYn 2.5 mL
cUlkñúgbMBg;sak nImYy²rYceFVIsareLIgvijBICMhan 6 dl; 9 sMrab;kareyabkelIkTI 3 . CalT§pl eyIg)anmaDFaturMlaysrub 50 mL .
12. yksUluysüúgEdl)anBIkardMeNIrkareyabkenH eTAbegðIreGayenAmaDRbmaN 1 mL
edayeRbIcRgáanGKÁisnIkMedAtic².
13. TukEkvenHeGayRtCak;tamsMrYlsMrab;dMeNIrkarsMritsMraMg.
3>5>2 dMeNIrkarsMritsMraMg1. eRtomkUeLansMritsMraMgsMra
b;dMeNIrkarenH edaylagsMGatvacMnYnbIdgCamYy l,ayGicsan³DIkør:Uemtan (DCM)
smamaRt 1:1 CamaD (V/V)
ehIyTukeGay s¶Ütl¥edayxül;.2. kUeLansMritsMraMgenHRtUvbM
eBjtamlMdab;nUv sMLIsrés (glass
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wool) emS:AsIulI kaskmµNWtcMnYn 0.4 g
emS:AsIulIkaskmµ)ascMnYn 0.5 g
nigemS:AsIulIkaskmµ GasIutcMnYn 2.5 g (rUbPaB 3.9).
3. bnÞab;mk kUeLansMritsMraMgenHRtUvepSImedaykarbgðÚr 20 mL énl,ay Gicsan³ DIkør:Uemtan (DCM) .
4. epÞrPaKsMNakEdl)anBIdMeNIrkareyabkedayeRbIBIEb:tEkv (glass Pasteur pipette)
cUleTAkñúgkUeLansMritsMraMg. EkvEdldak;FaturMlayPaKsMNakenH k¾RtUvlagedayl,ay Gicsan³b:g;tan 1:1 (V/V) RbmaN 1
eTA 2 mL ehIy cak;cUleTAkñúgkUeLanEdr.
5. BRgavPaKsMNakkñúgkUeLansMritsMraMgedaybEnßm 14 mL
énl,ayGicsan³ DIkør:Uemtan (DCM)
.6. bgðÚrPaKsMNakBIkUeLandak;k
ñúgEkvEvg (cMNuHRbEhl 100 mL)
ehIylagépÞ xagkñúgrbs;kUeLanmþgeTotCa
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mYyl,ay Gicsan³DIkør:Uemtan (DCM) 1 eTA 2 mL
edIm,IeGayc,as;faKµansarFatuEdl)anBIkareyabkNaCab;enAelIépÞkUeLan eToteT.
7. PaKsMNakEdl)anRtUvykeTAbnþrMhYtedaycRgáankMedArhUtdl;)anmaDRbEhl 1 mL. rkSaTukEkvenHeGayRtCak;tamsMrYlsMrab;karrMhYtbnþ.
8. eRbIBIEb:tEkv (glass Pasteur pipette)
bUmsUluysüúgEdl)anBIkarrMhYtdak;kñúg EkvmYy (cMNuHRbEhl 10 mL) . lagEkvxagelICamYyl,ay Gicsan³ DIkør:U emtan (DCM) 1 eTA 2 mL .
9. eRbIbMBg;qµarbUm 20 µL 1,7,8-TriCDD
kMhab; 100 ng/µL dak;kñúgEkvxagelI rYckMedAenAsItuNðPaB 80 ºC eTA 90 ºC rhUtdl;maD 150 µL .
10. TukEkvenHeGayRtCak;tamsMrYlsMrab;viPaKCamYyma:sIun HPLC .
105
sIuIlIkaGasIut 2.5 g sIuIlIka)as 0.5 g sIuIlIkaNWt 0.4 g sMLIsrés
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rUbPaB 3.9 ³ kUeLansMritsMraMgsMrab;Ejk DDTs
nig PCBs (Bart et al., 2009)
3>6 karerobcMsUluysüúgsþg;dasUluysüúgsþg;daEdleRbIsMrab;karRsavRCavenHman sUluysüúgsþg;da DDTs
sUluy süúgsþg;da PCBs nigsUluysüúg 1,2,3,4-TCDD EdleRbICa Internal Standard . sUluy süúgsþg;da DDTs nigsUluysüúgsþg;da PCBs RtUv)anbBa¢aTijBIRkumh‘un Accustandard., Inc. rbs;shrdæGaemric. KYrbBa¢ak;pgEdrfa sUluysüúgsþg;da DDTs
Cal,ayén DDT TaMgR)aMmYyRbePT³ o,p’-DDE, p,p’-DDE, o,p’-DDD, p,p’-DDD, o,p’-DDT, p,p’-DDT
EdlRtUv)anrMlaykñúgGicsanCamYynwgmaDsrub 1 mL (tarag 3.1). cMENk sUluy süúgsþg;da PCBs Cal,ayén PCB congeners TaMg 12 rbs;BBYk Dioxine-Like PCBs (WHO mix)
EdlRtUvrMlayCamYyGIusUGuktankúñgmaDsrub 1 mL (tarag 3.2).
bMrugRby½tñ³ edayehtufa DDTs, PCBs
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nigFaturMlayd¾éTeTotEdleRbIkúñglMnaM BiesaFn_enHsuT§EtCasmasFatuBul ehIyCagenHeTotsUluysüúgsþg;daEdleRbImankMhab; x<s;pgenaH dUcenHvaCakarcM)ac;Nas;EdlGñkBiesaFn_RtUvEtmankarRbugRby½tñCab;Canic©. bEnßmelIkarBak;GavsMrab;TIBiesaFn_ eRsaméd Ev:ntakarBarEPñk m:as;karBarRcmuHRtUvEtBak; Canic©ral;eBlGñkb:HBal;sarFatuTaMgenaH.
tarag 3.1: smasPaKrbs;l,aysþg;da DDTs
nigkMhab;rbs;vanImYy²
l,aysþg;da DDTs
kMhab; (KitCa
µg/mL)o,p’-DDD 100p,p’-DDD 100o,p’-DDE 100p,p’-DDE 100o,p’-DDT 100p,p’-DDT 100
tarag 3.2: smasPaKrbs;l,aysþg;da PCBs nigkMhab;rbs;vanImYy²
l,aysþg;da PCBs (IUPAC)
TItaMgCMnYs
kMhab; (KitCa
µg/mL)PCB 77 3,3’,4,4’ 100PCB 81 3,4,4’,5 100
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PCB 105 2,3,3’,4,4’ 100PCB 114 2,3,4,4’,5 100PCB 118 2,3’,4,4’,5 100PCB 123 2,3’,4,4’,5 100PCB 126 3,3’,4,4’,5 100PCB 156 2,3,3’,4,4’,5 100PCB 157 2,3,3’,4,4’,5’ 100PCB 167 2,3’,4,4’,5,5’ 100PCB 169 3,3’,4,4’,5,5’ 100PCB 189 2,3,3’,4,4’,5,5’ 100
3>7 karRtYtBinitüKuNPaB edIm,IbgðajBIRbsiT§PaBénkarvas;rbs;m:asIun karRtYtBinitüKuNPaBRtUv)aneFVIeLIg. karRtYtBinitüKuNPaBenHeFVIeLIgedayvas;elIktþabIy:agKW karKNnatMél Recovery KMlatlI enEG‘DINamic (LDR)
nigbrimaNkMNt;tUcbMput (MDL)
rbs;m:asIun.
3>7>1 karKNnatMél Recovery
rbs;PaKsMNakkarKNnatMélPaKry Recovery
CaskçIPaBmYyEdlbBa¢ak;BIkar)at;bg;sarFatuviPaK kñúgdMeNIrkarrbs;viFIsaRsþrab;TaMgkareyabk nigkarsMritsMraMg. karKNna Recovery enHRtUv eFVIcMeBaHRKb;PaKsMNakTaMgGs;EdlviPaK. edIm,I)antMélrbs;)a:ra:Em:tmYyenH
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eyIgRtUvBwg Ep¥kelIsarFatuEdleRbICa Internal Standard. PaKry Recovery CapleFobépÞ 1,2,3,4-TCDD
Edlcak;kñúgPaKsMNakenAdMNak;kardMbUgénkareFVIeyabk CamYynwgépÞEdlcak;pÞal; kñúgmaDesµIKñaEdleGayeday HPLC. % Recovery = (épÞ 1,2,3,4-TCDD munsMritsMraMg x 100)/ épÞ 1,2,3,4-TCDD cak;pÞal;
xageRkamenH Ca]TahrN_mYyénkareFVI Recovery
elIPaKsMNakex©AedayeRbIsþg;da 1,2,3,4-TCDD.
tarag 3.3: karKNnaPaKry Recovery rbs;PaKsMNakex©A
karvas;
épÞmunsMritsMraMg
épÞmFümmunsMritsMraM
gkarvas;elIkTI 1
11388
11708karvas;elIkTI 2
10949
karvas;elIkTI 3
12788
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épÞcak;pÞal; 11804
% Recovery 99.20%
3>7>2 karKNnatMélKMlatlIenEG‘DINamic (LDR)
KMlatlIenEG‘DINamic (LDR)
CaépÞBicmFümEdl)anmkBIkarvas;eRcIndg cMeBaHtMél kMhab;sþg;daxus²Kña ehIybgðajCaRkabExSekag (Calibration Curve) . vaCasakSImYyeTot Edlbgðajfa lT§plEdlTTYl)anBIkarBiesaFn_enHmansuRkitPaBkan;Etx<s;ebIsintMélva kan;EtFM. tMélKMlatlIenEG‘DINamicenH RtUv)anKNnacMeBaHsþg;da DDTs
TaMgR)aMmYy RbePTelItMélkMhab;xus²Kña³ 1.25 ppm, 2.5
ppm, 5 ppm nig 10 ppm. ÉépÞBicmFüm)an mkBIkarKNnatMélmFümtamtMélkMhab;nImYy²eRkayBIkarvas;cMnYnbIdg.
tarag 3.4:
tMélépÞBicmFümCaGnuKmn_CamYykMhab;sþg;da
kMhab;sþg;da
1.25 2.5 5 10
épÞBicmFüm 531 1103 2210 3913
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Calibration Curve of p,p'-DDE
y = 383.78x + 140.26R2 = 0.9948
0500
10001500200025003000350040004500
0 2 4 6 8 10 12
Concentration (ppm)
Aver
age
Peak
Are
a
Rkab 3.1:
tMélKMlatlIenEG‘DINamicrbs;sUluysüúgsþg;da
kMNt;sMKal;³ R2
CaemKuNkMNt;rbs;sUluysüúgsþg;da EdlbgðajBIPaBsuRkiténkar erobcMsUluysüúgsþg;datamtMélkMhab;rbs;va. CaTUeTA R2
mantMélenAcenøaHBI 0 eTA 1 ehIyebI R2 kan;EtxitCit 1
enaHkarerobsUluysüúgsþg;dakan;EtmanPaBsuRkitl¥ ehIyeKGac eRbIRkabenH edIm,IKNnakMhab;kñúgPaBRbhak;RbEhl)anEdr. 3>7>3 karKNnatMélbrimaNkMNt;tUcbMput (MDL)
tMélbrimaNkMNt;tUcbMput (MDL)
CatMélkMhab;Gb,brmarbs;sarFatuviP
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aKkñúgPaK sMNakEdlm:asIunviPaKGacvas;)an. kñúgn½yenH m:asIunnwgminGacvas;)annUvbrimaNsarFatu viPaK)aneT RbsinebIkMhab;rbs;vaenAeRkamtMél MDL
ehIym:asIunnwgmanRbsiT§PaBkan;Et x<s;ebIvamantMél MDL kan;EttUc.
tMél MDL
RtUv)anKNnaedaykarBRgavsUluysüúgsþg;daedIm CabnþbnÞab;tamrebob Serial Dilution
ehIyyksUluysüúgtamtMélkMhab;nImYy²eTAviPaKCamYym:asIun HPLC
rhUtdl;tMélkMhab;tUcbMputEdlGaceGayBicGacemIleXIj. sUluysüúgsþg;daenAkMhab; tUcbMputenHRtUvykeTAvas;eRcIndg (R)aMBIrdg)
edIm,I)ankMritlMeGogrbs;va. kñúgkarRsavRCav enH sþg;da DDTs
TaMgR)aMmYyRtUv)anykmkvas; nigKNnark MDL. xageRkamenHCa]TahrN_mYyénkarKNna MDL rbs; o,p’-DDD. tMél MDL
enHRtUvKNnacMeBaHkMhab; 1.25 ppm
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EdlRtUv)anrkeXIjfaCakMhab;Gb,brmaEdlm:asIun Gacvas;)an.
tarag 3.5: tMélépÞBicsMrab;kMhab; 1.25 ppm eGayedaykarvas;R)aMBIrdg karvas;
elIkTI 1
elIkTI 2
elIkTI 3
elIkTI 4
elIkTI 5
elIkTI 6
elIkTI 7
épÞBic 577 581 517 522 528 516 523
tMél MDL
GacKNna)anluHRtaEteKsÁal;tMéllMgaksþg;da (SD) énkarvas;épÞ BicTaMgR)aMBIrelIknigtMél t-value
EdlRtUvKñanwgcMnYndgénkarvas;enH.
lMgaksþg;da (SD) manrUbmnþ³ Edl SDCalMgaksþg;da
(kMritlMeGog)énkarvas;TaMgR)aMBIrelIk
N CacMnYndgénkarvas;xi
CatMélépÞBicEdlvas;)anmYyelIk²
CatMélépÞBicmFümEdl)anBIkarvas;TaMgR)aMBIrelIk
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edIm,IeGaytMél MDL
EdlTTYl)anmanxñatCa (ppm)
enaHeKRtUvbMElgtMél SD
EdlrkeXIjeTACa (ppm)
CamunsinedayGnuvtþn_tamrUbmnþdUcxageRkam³
tMél MDL GacKNnatamrUbmnþ MDL =
SD(ppm) x t-value Edl t-value esµI 3.134 cMeBaH N = 7 . edaykarKNnatamrebobxagelI eKTTYl)antMél MDL rbs;sþg;da DDTs
TaMgR)aMmYyRbePT (tarag 3.6) . tarag 3.6: tMél MDL
rbs;sUluysüúgsþg;da DDTs
RbePTsþg;da DDTs
kMhab;tUc
bMput (ppm)
épÞmFüm
(vas; 7 dg)
lMgaksþg;da
(SD)
lMgaksþg;da (SDppm)
MDL (ppm)
kñúgsUluysüúg
MDL (ppb)
kñúgPaKsMNak
o,p’-DDD 1.25 704 81.28 0.14 0.45 42.54p,p’-DDD 1.25 464 60.84 0.16 0.51 48.31o,p’-DDE 1.25 529 70.64 0.16 0.52 49.18p,p’-DDE 1.25 461 52.31 0.14 0.44 41.76o,p’-DDT 1.25 538 28.50 0.06 0.20 19.52p,p’-DDT 1.25 519 37.80 0.09 0.28 26.83
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3>8 karKNnakMhab; DDTs nig PCBs
EdlmankñúgPaKsMNakedIm,IKNnakMhab;rbs; DDTs nig PCBs
EdlmanenAkñúgPaKsMNak eyIgRtUvKNna kMhab;rbs;vakñúgsUluysüúgviPaKCamunsin. kMhab;kñúgsUluysüúgviPaK TTYl)anedayeRbI TMnak;TMng³
eK)an kMhab;FatuviPaKkñúgsUluysüúgviPaK (ppm b¤ ng/µL) =
eday maDsUluysüúgviPaKKW 150 µL
enaHbrimaNCam:asrbs;FatuviPaKkñúgsUluysüúgviPaK³ m:as (ng) = kMhab;FatuviPaK x 150 µL
ehIy m:asPaKsMNakEdlykmkeRbIKW 1.6 g
dUcenHkMhab;FatuviPaKenAkñúgPaKsMNakKW
kMhab; (ng/g b¤ ppb) = m:asFatuviPaK (ng)/ m:asPaKsMNak (g)
115
kMhab;sþg;da (ppm)
épÞsþg;da
kMhab;FatuviPaK (ppm)
épÞFatuviPaK
=
kMhab;sþg;da x
épÞPaKsMNak épÞsþg;da
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3>9 karerobcMPaKsMNaksMrab;eyabk sMritsMraMg nigeyabklIBIt
dMbUgRtUvykPaKsMNakex©A xüg Edl)ansþúkTukkñúgTUrTwkkkEdlmanm:as 2 Kg ecj mkeRkAeGayRtCak;tamsMrYlrhUtTwkkkrlayGs;. ex©A xügRtUveRCIserIsedayécdnü eGay)anm:as 0.5 Kg
mkbksMbkvaecjykEtsac;. bnÞab;mk RtUvykvaeTARkLúkrhUt m:dæl¥Cal,ayesµIsac;edayeRbIm:asIunTwkRkLúk (Blender) . KYrbBa¢ak;fa m:asIunTwkRkLúk EdleRbIRtUvEtCaRbePTEdleFVIBIEkv edIm,IeCosvagkarCab;FatuviPaKeTACamYy ehIyRKb; sMPar³EdleRbIkñúgdMeNIrkarerobcMPaKsMNakenHRtUvlagsMGatCamYyGaestUn nigRtUvsMgYt eGays¶Ütl¥Camunsin. PaKsMNakEdlm:dæehIyRtUvepÞrcUleTAkñúgkUndbtUc²edaybitsøak sMKal;TItaMg elxlMdab;
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nigkalbriecäTerobcMy:agRtwmRtUvrYcykeTArkSakñúgTUrTwkkkenA sItuNðPaB – 25 ºC sMrab;kareyabk sMritsMraMg nigeyabklIBIt. cMENkPaKsMNakex©A xüg EdlenAsl;BIkarbkk¾RtUvykeTATukkñúgTUrTwkkkvijEdr sMrab;eRbIR)as;elIkeRkaykñúgkrNI caM)ac;. 3>10 karerobcMsUluysüúgPaKsMNaksMrab;karviPaKCamYy HPLC
CMhanénkarerobcMsUluysüúgPaKsMNaksMrab;karviPaKCamYy HPLC
RtUvGnuvtþn_ dUckarsakl,gviFIsaRsþEdl)anBN’nakñúgEpñk 3.5.1 nig 3.5.2 Edr. b:uEnþvaCakarcaM)ac;Nas; EdlRtUvkt;sMKal;fa kUndbdak;PaKsMNakEdlykecjBITUrTwkkk RtUvTukeGayRtCak;tam sMrYlenAsItuNðPaBbnÞb;munnwgcab;epþImkareFVIeyabk karsMritsMraMg RBmTaMgkareyabklIBIt pgEdr. 3>10>1 dMeNIrkareyabk
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1. erobcMbMBg;sakrgVilcakp©itEdlmanKMrbcMnYn 4 dUc²Kña
2. føwgPaKsMNak 0.4g
dak;eTAkñúgbMBg;saknImYy²3. cak;l,ayGicsan³b:g;tan smamaRt
1:1 (V/V) cMnYn 5 mL cUlkñúgbMBg;sak nImYy²
4. bUmsUluysüúg 1,2,3,4-TCDD kMhab; 100
ng/µL cMnYn 20 µL eTAkñúgbMBg;sak nImYy²
5. føwg 1.25g
RkamGMbilsUdüÚms‘ulpat (Na2SO4)dak;kúñgbMBg;rgVilcakp©itnImYy²
6. RKbKMrbbMBg;TaMgGs;eGayCitl¥
7. RkLúkbMBg;sakeGaysBVl¥edayeRbIéd nigma:sIun Vortex ry³eBl 2
naTI8. ykbMBg;PaKsMNakTaMgbYneTA
rgVilcakp©itenAel,Ón 2500 rpm
(CMukñúgmYynaTI) ry³eBl 5 naTI9. epÞrFaturMlaykñúgbMBg;TaMgb
YncUlKñadak;bMBg;sakEvgmYycMNuHRbmaN 100 mL
10. dak;l,ayGicsan³b:g;tan smamaRt 1:1 (V/V) cMnYn 5 mL cUlkñúgbMBg;sak
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nImYy² rYceFVIsareLIgvijBICMhan 6 dl; 9
sMrab;kareyabkelIkTI 2 . 11. dak;l,ay Gicsan³b:g;tan
smamaRt 1:1 (V/V) cMnYn 2.5 mL
cUlkñúgbMBg;sak nImYy² rYceFVIsareLIgvijBICMhan 6 dl; 9
sMrab;kareyabkelIkTI 3 . CalT§pl eyIg)anmaDFaturMlaysrub 50 mL .
12. yksUluysüúgEdl)anBIkardMeNIrkareyabkenH eTAbegðIreGayenAmaDRbmaN 1 mL
edayeRbIcRgáanGKÁisnIkMedAtic².
13. TukEkvenHeGayRtCak;tamsMrYl sMrab;dMeNIrkarsMritsMraMg.
(a) (b)
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(c) (d)
rUbPaB 3.10 ³
dMeNIrkareyabkPaKsMNak (a)
bMBg;sakrgVilcakp©it (b)
karRkLúkbMBg;sak edayma:sIun Vortex (c)
karepÞrPaKsMNakdak;kñúgbMBg;sak
(d)karbegðIrsUluy
süúgviPaKedayeRbIcRgáanGKÁisnI3>10>2 dMeNIrkarsMritsMraMg
1. eRtomkUeLansMritsMraMgsMrab;dMeNIrkarenH edaylagsMGatvacMnYnbIdgCamYy l,ayGicsan³DIkør:Uemtan (DCM)
smamaRt 1:1 CamaD (V/V)
ehIyTukeGay s¶Ütl¥edayxül;.2. kUeLansMritsMraMgenHRtUvbM
eBjtamlMdab;nUvsMLIsrés (glass wool)
emS:AsIulI kaskmµNWtcMnYn 0.4 g
emS:AsIulIkaskmµ)ascMnYn 0.5 g
nigemS:AsIulIkaskmµ GasIutcMnYn 2.5 g (rUbPaB 3.9).
3. bnÞab;mk kUeLansMritsMraMgenHRtUvepS
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ImedaykarbgðÚr 20 mL
énl,ayGicsan³ DIkør:Uemtan (DCM) .4. epÞrPaKsMNakEdl)anBIdMeNIrka
reyabkedayeRbIBIEb:tEkv (glass Pasteur pipette)
cUleTAkñúgkUeLansMritsMraMg. EkvEdldak;FaturMlayPaKsMNakenHk¾ RtUvlagedayl,ay Gicsan³b:g;tan 1:1 (V/V) RbmaN 1
eTA 2 mL ehIycak; cUleTAkñúgkUeLanEdr.
5. BRgavPaKsMNakkñúgkUeLansMritsMraMgedaybEnßm 14 mL
énl,ayGicsan³DIkør:U emtan (DCM) .
6. bgðÚrPaKsMNakBIkUeLandak;kñúgEkvEvg (cMNuHRbEhl 100 mL)
ehIylagépÞ xagkñúgrbs;kUeLanmþgeTotCamYyl,ayGicsan³DIkør:Uemtan (DCM) 1 eTA 2 mL edIm,IeGayc,as;fa KµansarFatuEdl)anBIkareyabkNaCab;enAelIépÞkUeLaneTot eT.
7. PaKsMNakEdl)anRtUvykeTAbnþrMhYtedaycRgáankMedArhUtdl;)anmaDRbEhl 1 mL.
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rkSaTukEkvenHeGayRtCak;tamsMrYlsMrab;karrMhYtbnþ.
8. eRbIBIEb:tEkv (glass Pasteur pipette)
bUmsUluysüúgEdl)anBIkarrMhYtdak;kñúg EkvmYy (cMNuHRbEhl 10 mL) . lagEkvxagelICamYyl,ay Gicsan³DIkør:U emtan (DCM) 1 eTA 2
mL . 9. eRbIbMBg;qµarbUm 20 µL 1,7,8-TriCDD
kMhab; 100 ng/µL dak;kñúgEkvxagelI rYckMedAenAsItuNðPaB 80 ºC eTA 90 ºC rhUtdl;maD 150 µL .
10. TukEkvenHeGayRtCak;tamsMrYlsMrab;viPaKCamYyma:sIun HPLC .
(a) (b) (c)
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rUbPaB 3.11 ³ dMeNIrkarsMritsMraMgPaKsMNak (a) kUeLansMritsMraMg (b) karbegðIr
sUluysüúgviPaKedaycRgáankMedA (c) karbegðIrsUluysüúgeGaysl;maD 150 µL
3>11 karviPaKCamYy HPLC
sUluysüúgPaKsMNakEdl)anerobcM 20 µL RtUv)ancak;bBa©Úlkñúg Injector
m:asIun HPLC edIm,IkMNt;rkbrimaN DDTs
nig PCBs . RbB½n§ HPLC
enHrYmmansñb;RbePT Shimadu LC-10AD
edticT½rRbePT Shimadu SPD-10A UV/Vis P¢ab;CamYy kMuBüÚT½rEdledIredaykmµviFI EzChrom
sMrab;karkt;Rta nigkarviPaK. kUeLanviPaK Cosmosil 5-PYE xñat (4.6 mm x 250 mm)
sMrab;PaKl¥itTMhM 5 µm
cMnYYnBIrdak;bnþKñaCaes‘rIkarBar edaykUeLankarBar (Guard Column) Cosmosil 5-PYE
xñat (4.6 mm x 10 mm) sMrab;PaKl¥it 5 µm (Nacalai
Tesque, Inc., Tokyo Japan) RtUv)aneRbIedIm,IEjkyk DDTs nig PCBs BIkñúgsUluysüúgviPaK. kUeLanTaMgenHRtUvrkSaeGayenAsItuNðPaB 9 ºC efredayeRbI]bkrN_ Column
Heater/Chiller (Jones Chromatography; Model 7955) . Gicsan
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EdleRbICapascl½tRtUvkMNt;eGaymanel,Ón 1.5 mL/min CamYysMBaF 95 psi . 3>12 dMeNIrkareyabklIBIt
viFIsaRsþénkareyabklIBIt RtUvGnuvtþn_tamCMhanEdlmanBN’nakñúgkarRsavRCav rbs; Bart et al., (2009)
edaymankarEkERbbnþicbnþÜc (rUbPaB 3.12).
1. føwgPaKsMNak 5 g
dak;kñúgEkv)aLúgEdlmanKMrb2. bEnßm 100 mL
énl,aykør:Upm³emtaNul smamaRt 2:1 CamaD (V/V) eTAkñúg Ekvdak;PaKsMNak
3. RKbKMrbEkvenaHeGayCitl¥4. RkLúkeGayxøaMgeGaysBVl¥
edIm,IeGayR)akdfalIBItEdlmanRtUv)anRsUbeday l,ayFaturMlay
5. eRcaHsUluysüúgenHedayeRbIRkdaseRcaHcUleTAkñúgLavEjkcMNuH 250 mL
6. bEnßmTwk (HPLC Grade) cMnYn 5 mL
eTAkñúgLavEjk7. RkLúkl,ayenHeGaysBV
rYcTukvakñúgsßanlMnwgrhUtEjkCapasBIr (ry³eBl RbEhl 3 eTA 4
em:ag )
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8. epÞrykpassrIragÁ (sßitenAEpñkxageRkaménLavEjk)
edayeRbIRkdaseRcaHEdl mandak; 10 g
énRkamGMbilsUdüÚms‘ulpat (Na2SO4) eTAkñúgEkv)aLúg)atmUl s¥at (caM)ac;RtUvkt;Rtam:asvaTukCamun)
9. yksUluysüúgEdlsMrit)aneTArMehIrkør:UpmecjedayeRbI]bkrN_ Rotary Eva-porator enAel,ÓnrgVil 210 eTA 230
rpm sItuNðPaB 60 ºC
10. eFVIeGaylIBItEdlCab;enA)atEkvs¶Ütl¥ edayeRbI]bkrN_)aj;xül;
11. føwgm:asEkv rYcKNnam:aslIBItEdlTTYl)an
12. KNnaPaKrylIBItEdlman³ %lIBIt = (m:aslIBIt x 100)/m:asPaKsMNak
(a) (b)
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(c) (d)
rUbPaB 3.12 ³ dMeNIrkareyabklIBItBIPaKsMNak (a)
karRkLúkl,ayPaKsMNak- FaturMlay (b)
kareRcaHyksUluysüúgFaturMlay (c)
karTukFaturMlay eGayEjkpas (d)
karbegðIrkør:Upmecjeday Rotary Evaporator
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CMBUk4 lT§plénkarBiesaFn_ nigkarBiPakSa
4>1 lT§plénkarvas;sUluysüúgsþg;da4>1>1 sUluysüúgsþg;da DDTs
edayehtufa sUluysüúgsþg;da DDTs
EdleRbIsMrab;karRsavRCavenHCal,aycUlKña énRslay DDTs
TaMgR)aMmYymux va)aneFVIeGaymankarlM)akbnþicenAkñúgkarkMNt; faetIBic mYyNaRtUvKñanwgsarFatuNamYy. b:uEnþeTaHCay:agNakþI eyIgenAEtGackMNt;GtþsBaØaN rbs;BicnImYYy²)an edaysareyIgmansUluysüúgsþg;da DDT
cMnYYnbI³ p,p’-DDD, p,p’-DDE, p,p’-DDT
nigedayEp¥kelIkareRbobeFobCamYylT§plénkarRsavRCavrbs; Chak (2009) nig Bart et
al., (2009). KYrkt;sMKal;fa ry³eBlecjBic (Retention time)
mankarERbRbYltictYcGaRs½yedaykarpøas;bþÚrrbs;RbB½n§ma:sIunviPaK. RbsinebIeyIgman sUluysüúgsþg;da DDT
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TaMgR)aMmYydac;edayELkBIKñaenaHvanwgmanPaBgayRsYleRcIn.
CalT§pl eyIgTTYl)anBiccMnYnR)aMmYyelcecjkñúgry³eBlepSgKñaKW 6.02, 6.17, 6.40, 8.97, 9.77
nig 16.27 EdlRtUvKñaCamYynwg o,p’-DDE, o,p’-
DDT, p,p’-DDE, p,p’-DDT, o,p’-DDD nig p,p’-DDD tamerog (Rkab 4.1).
Rkab 4.1 :
RkUm:atURkaml,aysUluysüúgsþg;da DDTs kMhab; 10 ppm
tamry³lT§plénkarvas;enHEdr eyIgeXIjkMBs;rbs;BicénsarFatunImYy²smamaRt eTAnwgkMhab;rbs;vaEdl)anvas;. kalNakMhab;viPaKkan;EtFMenaHvanwgeGayBicEdlman
128
o,p’-DDE
o,p’-DDT
p,p’-DDE
p,p’-DDT
o,p’-DDD p,p’-DDD
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kMBs;kan;Etx<s;Edr. kñúgkrNIenH eyIgsUmelIkykBicrbs; p,p’-DDT nig o,p’-DDD
Ca]TahrN_dUcmanbgðajkñúgRkab 4.2 . BicEdltMNageGaysarFatu ekInkMBs;CabnþbnÞab; CamYynwgkMenInrbs;kMhab;KW³ 1.25,
2.5, 5, 10 nigkMhab; 25 ppm (Rkab 4.2).
Rkab 4.2 :
RkUm:atURkaml,aysUluysüúgsþg;da p,p’-DDT nig o,p’-DDD ekIntamkMhab;
4>1>2 sUluysüúgsþg;da PCBs
dUcKñanwgsUluysüúgsþg;da DDTs
Edr sUluysüúgsþg;da PCBs
EdleRbIsMrab;kar sikSaenHBMuEmnCasþg;dadac;EtÉg
129
p,p’-DDT o,p’-DDD
1.25 ppm
2.5 ppm
5 ppm
10 ppm
25 ppm
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mYymux²enaHeT. vaCal,ayén PCBs congeners
cMnYn 12
RbePTEdlsuT§swugCasmaCikénRkum dioxine-like PCBs rMlayenAkñúgGIusUGuktan³ PCB 77, PCB 81, PCB 105, PCB 114, PCB 118, PCB 123, PCB 126, PCB 156, PCB
157, PCB 167, PCB 169 nig PCB 189 . dUcenH eyIgminGackMNt;faBicNamYyRtUvKñanwg PCB yfa RbePTNamYyeLIy. RkUm:atURkaménl,aysþg;da PCBs
RtUv)anbgðajenAkñúgRkab 4.3 .
Rkab 4.3 :
RkUm:atURkaml,aysUluysüúgsþg;da PCBs kMhab; 10 ppm
130
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tamkarrMBwgTuk KYrEtmanBiccMnYn 13 elceLIg (Bic 12
sMrab;sþg;da PCBs nigBicmYy eTotsMrab;GIusUGuktan). EttamlT§pl)anBIkarvas; eKeXIjmanBiccMnYnEt 10 b:ueNaÑHEdl ecjenA 8.2, 8.4, 9.3, 10.3, 10.9, 11.5, 11.8, 12.2, 15.2 nig 18.5naTI. enHbBa¢ak;fa manBiccMnYnbIEdl)an)at; EdlRbEhlCabNþalmkBIkarKgelIKña (ecjenAry³eBlEtmYy) ehAfa)atuPUt coelution CamYynwgBicEdlemIleXIjenaH. eKGacniyaymü:ageTot)anfa kñúgcMeNamBicEdleGayedaykarvas;enH R)akdCamanxøHCabnSMénBicy:agehacNas;BIrEdl )anedaykarelcecjkñúgry³eBldUcKña. bBaðaénkarkMNt;GtþsBaØaNrbs;BicenH nwgBitCa GacedaHRsay)an RbsinebIeyIgmansUluysüúgsþg;dadac;²BIKñasMrab; PCBs RbePTnImYy² eBalKW eyIgGackMNt;BicnImYy²rbs; PCBs TaMg 12
kñúgl,aytamry³karsÁal;lMdab;énkar ecjBicTaMgenaH. CagenHeTAeTot
131
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eyIgRbEhlCanwgGackMNt;)annUvBicEdl)anmkBIkarKg KñaCak;Caminxan.
Rkab 4.4
xageRkamenHbgðajBIkarekIneLIgénkMBs;Bicrbs;l,aysUluysüúgsþg;da PCBs
CamYynwgkarbegáInkMhab;rbs;va. kMhab;EdleRbIsMrab;vas;kñúgRkab 4.4 rYmman 1.25, 2.5, 5, 10 nig 25 ppm.
Rkab 4.4 :
RkUm:atURkaml,aysUluysüúgsþg;da PCBs ekIntamkMhab;
4>1>3 l,aysUluysüúgsþg;da DDTs, PCBs
nig Internal Standards
RkUm:atURkamEdl)anmkBIkarlaybBa©ÚlKñaénl,ay DDTs nig PCBs k¾dUcCal,ay DDTs, PCBs nig Internal standards TaMgBIr (1,2,3,4-TCDD nig
132
1.25 ppm2.5 ppm5 ppm
10 ppm
25 ppm
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1,7,8 –TriCDD) bgðaj faminman)atuPUt coelution
rbs;bNþaBicekItmaneToteT. karenHbBa¢ak;fa vamin)anbEnßm PaBsµúKsµajsMrab;karkMNt;GtþsBaØaNrbs;BiceToteLIy. dUckarrMBwgTuk manBicsrub 16
EdlemIleXIjkñúgl,aysþg;da DDTs nig PCBs
(Rkab 4.5).
Rkab 4.5 :
RkUm:atURkaml,aysUluysüúgsþg;da DDTs nig PCBs kMhab; 1.25 ppm
manBiccMnYn 18
eGayedaym:asIunviPaKsMrab;l,ay DDTs,
PCBs nig Internal standards. KYrbBa¢ak;fa 1,7,8 –TriDCD eGayBicenAnaTITI 13.8 min ehIy 1,2,3,4-TCDD
eGayBicenAnaTITI 22.5 min(Rkab 4.6).
133
o,p’-DDT
p,p’-DDE
o,p’-DDD
p,p’-DDTo,p’-DDE
p,p’-DDD
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TriCDD TCDD
Rkab 4.6 :
RkUm:atURkaml,aysUluysüúgsþg;da DDTs, PCBs nig Internal standard
4>2 lT§plénkarviPaKelIPaKsMNakkarviPaKelIPaKsMNakrbs;tMbn;sikSaTaMgbI )anbgðajeGayeXIjnUvlkçN³Biess mYycMnYnKYreGaycab;GarmµN_. BItMbn;sikSamYyeTAtMbn;sikSamYy nigBIRbePTPaKsMNakmYy eTARbePTPaKsMNakmYy BicEdleGayedaykarvas;mansNæanesÞIrEtdUcKñaTaMgRsugelI rUbrag nigcMnYnrbs;BicEdlGacemIleXIj. b:uEnþGVIEdlKYreGaykt;sMKal;bMputenaHKW RKb;ral; PaKsMNakTaMgGs;eGayBicmYyEdlRtYtsIuKñaCamYynwgBicsþg;darbs; o,p’-
DDE. eRkABIenH
134
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eKmineXIjmanBicNamYyd¾éTeTotEdlRtYtcMBicrbs;RsLay DDTs nig PCBs
EdlenAsl; eLIy. 4>2>1 PaKsMNakmkBITenøemKgÁ (extþkMBg;cam)
Rkab 4.7 nig 4.8
CaRkUm:atURkamrbs;PaKsMNakTaMgBIr³ ex©AdIxSac;BIdgTenøemKgÁ nig ex©AdIl,ab;BItMbn;bwgFM. EpñkEdlBicsgS½yRtYtKñanwgBicsþg;da o,p’-DDE énRkab 4.7
RtUv)anBRgIkeGayeXIjkan;Etc,as; ehIyTMrg;énRkabenHmanPaBRsedogKñacMeBaHral;RKb; PaKsMNakTaMgGs;.
135
o,p’-DDE
BicsgS½y
sMKal;³ l,aysþg;da DDTs nig PCBs
PaKsMNakextþkMBg;camTItaMgTI 1
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Rkab 4.7 :
RkUm:atURkamPaKsMNakex©ABITenøemKgÁextþkMBg;camTItaMgTImYy
Rkab 4.8 :
RkUm:atURkamPaKsMNakex©ABITenøemKgÁextþkMBg;camTItaMgTIBIr
4>2>2 PaKsMNakmkBIbwgTenøsab (extþkMBg;qñaMg)
136
sMKal;³ l,aysþg;da DDTs nig PCBs
PaKsMNakextþkMBg;qñaMgTItaMgTI 1
sMKal;³ l,aysþg;da DDTs nig PCBs
PaKsMNakextþkMBg;camTItaMgTI 2
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Rkab 4.9 :
RkUm:atURkamPaKsMNakex©ABIbwgTenøsabextþkMBg;qñaMgTItaMgTImYy
Rkab 4.10 :
RkUm:atURkamPaKsMNakex©ABIbwgTenøsabextþkMBg;qñaMgTItaMgTIBIr
137
sMKal;³ l,aysþg;da DDTs nig PCBs
PaKsMNakextþkMBg;qñaMgTItaMgTI 2
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4>2>3 PaKsMNakmkBIbwgeCIgÉk
Rkab 4.11 :
RkUm:atURkamPaKsMNakxügBIbwgeCIgÉkTItaMgTImYy
138
sMKal;³ l,aysþg;da DDTs nig PCBs
PaKsMNakbwgeCIgÉkTItaMgTI 1
sMKal;³ l,aysþg;da DDTs nig PCBs
PaKsMNakbwgeCIgÉkTItaMgTI 2
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Rkab 4.12 :
RkUm:atURkamPaKsMNakxügBIbwgeCIgÉkTItaMgTIBIr
Rkab 4.13 :
RkUm:atURkamPaKsMNakxügBIbwgeCIgÉkTItaMgTIbI
139
sMKal;³ l,aysþg;da DDTs nig PCBs
PaKsMNakbwgeCIgÉkTItaMgTI 3
sMKal;³ l,aysþg;da DDTs nig PCBs
PaKsMNakbwgeCIgÉkTItaMgTI 4
sMKal;³ l,aysþg;da DDTs
nig PCBs
sMKal;³ l,aysþg;da DDTs
nig PCBs
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Rkab 4.14 :
RkUm:atURkamPaKsMNakxügBIbwgeCIgÉkTItaMgTIbYn
4>3 lT§plénkarviPaKelIBicsgS½ykarEdlRKb;PaKsMNakTaMgGs;eGa
yBicRtg;cMNucEtmYydUcKñaenH eFVIeGaymankar RsBicRsBilkñúgkarsnñidæanfa BicEdlRtYtcMenaHCaBicrbs; o,p’-DDE
Emn. mankrNI sgS½yBIrepSgeTotGacekIteLIgEdlfaBicenaHminEmnCarbs; o,p’-DDE: (1)
vaCasarFatu EdlmanenAkñúgFatuKImI b¤sMPar³NamYyEdleRbIR)as;kñúgdMeNIrkarBiesaFn_ b¤ (2) vaCaBic rbs;sarFatuEdlmanenAkñúgBBYksib,IstVRbePTxüg ex©A ehAfam:aRTic (Matrix). dUcenH karBiesaFn_RtUv)aneFVIeLIgedIm,Ik
140
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MNt;GtþsBaØaNkmµrbs;BicEdlsgS½yenaH munnwgQaneTA dl;karsnñidæanfa vaBitCaBicrbs;FatuviPaKEmnedaycab;epþImBIsmµtikmµsgS½yTImYy.
lT§plEdl)anmkBIeFVI Blank
(kareFVIeyakbknigsMritsMraMgedayminmandak;PaK sMNakcUl eBalKWmanEtFaturMlayb:ueNaÑH)
bgðajeGayeXIjnUvlT§plEdlKYreGayPJak; ep¥Il.
Rkab 4.15 : RkUm:atURkam Blank
(minmandak;PaKsMNak)
141
sMKal;³ l,aysþg;da DDTs nig PCBs
Blank
(minmandak;PaKsMNak)
BicsgS½yo,p’-DDE
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eKeXIjmanBicEdlsgS½yenaHelceLIgkñúgRkUm:atURkam Blank
enHmann½yfa vamin EmnCasarFatuenAkñúgPaKsMNakviPaKenaHeT EtvaBitCamanvtþmanenAkñúgsarFatuKImI b¤Fatu rMlay b¤sMPar³EdleRbIkñúglMnaMeyabk nigsMritsMraMg (krNIsgS½yTImYy). kartamdanrk vtþmanBicenaH faetIvasßitenAkñúgsarFatuNamYyeGayR)akdenaH RtUv)aneFVIeLIg. karviPaK eTAelI l,ayFaturMlayGicsan³b:g;tan l,ayGicsan³DIkør:Uemtan GMbilsUdüÚms‘ulpat (Na2SO4)
sIulIkaGasIut nigsIulIkaNWt min)aneGayRkUm:atURkamEdlmanvtþmanrbs;Bic sgS½yenaHeT. b:uEnþ BicsgS½yenHelceLIgenAkñúgRkUm:atURkamrbs;sIulIka)as EdlbBa¢ak;BI RbPBénvtþmanrbs;va (Rkab 4.18).
142
sMKal;³ l,aysþg;da DDTs nig PCBs
sIulIkaskmµGasIut
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Rkab 4.16 :
RkUm:atURkamrbs;sIulIkaskmµGasIut
Rkab 4.17 :
RkUm:atURkamrbs;sIulIkaskmµNWt
143
sMKal;³ l,aysþg;da DDTs nig PCBs
sIulIkaskmµNWt
BicsgS½y
sMKal;³ l,aysþg;da DDTs nig PCBs
suIlIkaskmµ)aso,p’-DDE
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Rkab 4.18 :
RkUm:atURkamrbs;suIlIkaskmµ)as4>4 lT§plénkareFVI Spiked
elIPaKsMNakedayehtufa
eyIgmin)anrkeXIjnUvvtþmanrbs;FatuviPaKNamYyTaMgRslay DDTs nig PCBs
enAkñúgPaKsMNaktMbn;sikSaTaMgbI eyIg)anRtlb;mkeRbIviFIsaRsþ Spiked
edIm,I epÞogpÞat;fa eyIgBitCaGaceyabk nigsMritsMraMgykFatuviPaKTaMgenaH)an RbsinebIvaBitCa manvtþmankñúgPaKsMNakEmnenaH. kñúgdMeNIrkar Spiked
eyIgGnuvtþn_dUckñúgdMeNIrkareyabk nigsMritsMraMgFmµtaEdr EtRtUvdak;l,aysUluysüúgsþg;da DDTs
nig PCBs enAcMNuccab;epþIm énkareFVIeyabk ehIyminmandak; Internal
standards TaMgBIrenaHeT. eyIg)anbEnßm 40 µL (10 µL eTAkñúgbMBg;saknImYy²)
nUvl,aysþg;da DDTs nig PCBs kMhab; 1.25 ppm. 144
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dUcenH kMhab;cugeRkayEdlRtUvKñanwgmaD 150 µL manEt 0.33 ppm b:ueNÑaH. xageRkamenHCakar KNna³
Ci Vi = Cf Vf
CalT§pl eyIgeXIjmanBicrbs;ral;RKb;FatuviPaKTaMgGs;elcecjcMeBaHRKb;PaK sMNakTaMgGs;rbs;tMbn;sikSaTaMgbI (Rkab 4.19 nigRkab 4.20 Ca]TahrN_). enHbBa¢ak;fa viFIsaRsþeyabkEdleRbIkñúgkarRsavRCavenH BitCaGaceRbICamYyPaKsMNakviPaKR)akd Emn. müa:geTot eKGacsnñidæan)anfa kMhab;rbs;FatuviPaK (DDTs nig PCBs)
sßitenAkñúg tMélmYyeRkamkMritEdlGacvas;)an (eRkamtMél MDL rbs;m:asIun) .
145
sMKal;³ l,aysþg;da DDTs nig PCBs
Spiked
elIPaKsMNakex©AextþkMBg;qñaMgTItaMgTI 1
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Rkab 4.19 : RkUm:atURkamrbs; Spiked
elIPaKsMNakex©AextþkMBg;qñaMgTItaMgTImYy
Rkab 4.20 : RkUm:atURkamrbs; Spiked
elIPaKsMNakxügbwgeCIgÉkTItaMgTIbYn
146
sMKal;³ l,aysþg;da DDTs nig PCBs
Spiked
elIPaKsMNakxügbwgeCIgÉkTItaMgTI 4
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4>5 lT§plénkareFVIeyabklIBIttarag 4.1
xageRkambgðajBIlT§plénm:aslIBItrbs;PaKsMNakTaMgLayrbs;tMbn; sikSaTaMgbIeTAtamRbePTnImYy². KYrbBa¢ak;fa m:asPaKsMNakEdleRbIkñúgkareyabkKW 5g
ehIyeFVIeyabkbIdgsMrab;PaKsMNakRbePTnImYy² rYcKNnam:aslIBItmFüm nigPaKry rbs;va.
tarag 4.1:
m:aslIBItrbs;PaKsMNaktMbn;sikSaTaMgbI
elxerog
tMbn;sikSaRbePTPaKsM
Nak
m:aslIBItmFüm (g)/g
m:asesIm
PaKrylIBIt (%)
1
TenøemKgÁ
(extþkMBg;cam)
KSKC 0.021 2.13
KMKC 0.017 1.732 bwgTenøsa
b (extþkMBg;
KSKN 0.026 2.60KLKN 0.019 1.93
147
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3
bwgeCIgÉk (CayraCFan
IPñMeBj)
SnPC 0.022 2.20SnBC 0.019 1.93SnMC 0.014 1.46
SnOC 0.019 1.93
sMKal;³KSKC :
PaKsMNakex©ATenøemKgÁ (extþkMBg;cam) kEnøgTImYy
KMKC :
PaKsMNakex©ATenøemKgÁ (extþkMBg;cam) kEnøgTIBIr
KSKN :
PaKsMNakex©AbwgTenøsab (extþkMBg;qñaMg) kEnøgTImYy
KLKN :
PaKsMNakex©AbwgTenøsab (extþkMBg;qñaMg) kEnøgTIBIr
SnPC :
PaKsMNakxügbwgeCIgÉkkEnøgTImYySnBC :
PaKsMNakxügbwgeCIgÉkkEnøgTIBIrSnMC :
PaKsMNakxügbwgeCIgÉkkEnøgTIbISnOC :
PaKsMNakxügbwgeCIgÉkkEnøgTIbYn
148
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CMBUk5 esckþIsnñidæan nigGnusasn_
5>1 lT§plBIRkUm:atURkamrbs;sUluysüúgsþg;daebIeTaHCamanEtsUluysüúgsþg;da DDTs
EtbIRbePTkñúgcMeNamR)aMmYyRbePT eyIg enAEtGackMNt;GtþsBaØaNrbs;BicEdlRtUvKñanwgRslay DDTs
TaMgR)aMmYy)anedayEp¥k elIlT§plénkarRsavRCavBImunmk. karEdleyIgGackMNt;sarFatuEdlRtUvnwgBicTaMgenH)an vaBitCamansarsMxan;eRcInNas;. eyIgGacKNna)annUvtMél MDL
rbs;RslayTaMgR)aMmYy k¾dUcCakMhab;rbs;vanImYy²kñúgPaKsMNak kñúgkrNIEdlvtþmanrbs;vaRtUv)anrkeXIjenaH.
cMeBaHsUluysüúgsþg;da PCBs
vijenaH vahak;dUcCamankarBi)akeRcInkñúgk
149
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arkMNt;Gtþ sBaØaNrbs;va. bEnßmelIkarminsÁal;lMdab;rbs;BicnImYy²faRtUvKñaCamYynwg PCB yfa RbePTNamYyehIyenaH BicEdlbgðajedaykarvas;rbs;m:asIunTTYlrgnUv)atuPUt Coelution
EdlnaMeGaymankarKgKñaénBicmYycMnYnedaysarEtkarecjkñúgeBldMNalKña. CalT§pl BiccMnYnbI)an)at; eBalKWmanEt 10
b:ueNaÑHkñúgcMeNam 13 EdlemIleXIj. enHRbEhlCaGac bNþalmkBIRslay PCBs
TaMgenaHmanlkçN³RsedogKñaxøaMgelIPaBb:UElrbs;va (lkçN³ rbs;smasFatuEdlCaGIusUEmrnwgKña)
EdlnaMeGaym:asIunviPaKminGacmanlT§PaBEjkBYkva eGaydac;BIKña ehIyEsþgecjCaBicepSgKña)an. eTaHCay:agenHkþI RbsinebIeyIgyksUluy süúgsþg;daenHeTAviPaKCamYy]bkrN_viPaKEdlmanlT§PaBEjkx<s;CagenH enaH)atuPUtén karKgBicRbEhlCaminekItmaneT b¤y:agehacNas;manBicticCagenHEdl)at;. mü:ageTot RbsinebIeyIgmansþg;dadac;edayELk
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mYymux² enaHeyIgnwgGackMNt;)anfaBicNaRtUvKñanwg PCBs yfaRbePTNamYy nigfaetIBicNaxøHEdl)anmkBIkarKgKñarbs;BicFatuviPaKeRcInCag mYy. edayehtuplénkarminsÁal;GtþsBaØaNrbs;Bic nigedaymankareRCotERCkBI)atuPUt Coelution eFVIeGayeyIgminGackMNt;tMél MDL rbs; PCBs )aneT. karenHnwgBitCabgá \T§iBlGviC¢mandl;karRsavRCav RbsinebIvtþmanrbs; PCB
NamYyRtUv)anrkeXIjkñúgPaK sMNak eRBaHfaeyIgR)akdCaminGackMNt;)anfavaCa PCB NaeLIy ehIykMhab;vak¾minGac KNnaeXIjenaHEdr.
5>2 lT§plBIRkUm:atURkamrbs;PaKsMNakRkUm:atURkamrbs;PaKsMNakTaMgR)aMbIéntMbn;sikSaTaMgbI bgðajnUvsNæanmYyEdlman lkçN³esÞIrdUcKñaTaMgRsugcMeBaHR
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Kb;PaKsMNakTaMgGs;. kñúgenaH eKsegáteXIjmanBictic tYcNas;EdlbBa¢ak;eGayeXIjfa sarFatukñúgPaKsMNaktictYcNas;EdlRtUvTajyk)an edaydMeNIrkareyabk b¤mYyk¾sarFatumYyPaKFMRtUv)anbM)at;edaykareFVIsMritsMraMg. bEnßm elIenH manBicFM²mYycMnYnEdlecjenAedImdMbUgénRkUm:atURkamEtvaRbEhlCaminEmnBicrbs; sarFatukñúgPaKsMNakeLIy. vaRbEhlCaBicrbs;FaturMlayEdleRbIkñúglMnaMBiesaFn_eTAvij eT. mü:ageTot BicTaMgenHmin)anbgáCabBaðadl;karRsavRCavenaHeT eRBaHminmanBicsþg;da FatuviPaKNamYyRtYtsIuKñanwgBicTaMgenaHeT. GVIEdlKYreGaykt;sMKal;CageKenaHKW vtþmanrbs;BicmYyEdlRtYtcMKñaCamYyBicrbs; o,p’-DDE . CagenHeTot vtþmanrbs;BicenHRtUv)anemIleXIjenARKb;RkUm:atURkamrbs;PaK
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sMNakTaMgGs;. karenHbgáCaPaBsÞak;esÞIrkñúgkarsnµt;fa BicEdleXIjenaHBitCaRtUvKña CamYynwg o,p’-DDE Emn RbsinebIeyIgmin)anKiteTAdl;krNIepSgeTot. KYrkt;sMKal;fa vahak;dUcCaBi)aknwgTTYlyknUvlT§plEdlfaFatu o,p’-DDE
BitCaRtUv)anrkeXIjmanRKb; PaKsMNakedayminmankareFVIEtsþbEnßmedIm,IepÞogpÞat;enaHeT xN³EdlFatuviPaKd¾éTepSg eTotminRtUv)anrkeXIj. lT§plEdl)anBIkareFVIEtsþelIsmµtikmµsgS½ybgðajfa BicenaHminEmnCaBicrbs; smasPaKkñúgPaKsMNakenaHeT. EtpÞúyeTAvij vaCaBicénsarFatuminsÁal;EdlmanenAkñúg emS:AsIulIkaskmµ)as. enHbBa¢ak;fa BMumanvtþman o,p’-DDE
RtUv)anrkeXIjenaHeLIy. EtKYrkt;sMKal;fa lT§plenHmin)annaMeTAdl;karsnñidæanfaKµan o,p’-DDE b¤sarFatuviPaKd¾ éTeTotenAkñúgPaKsMNakenaHeT.
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kñúgkarRsavRCavenH edIm,IepÞogpÞat;lT§plEdlrkeXIj nigk¾dUcCakñúgeKalbMNg bBa¢ak;eLIgvijBIRbsiT§PaBrbs;viFIsaRsþenaH kareFVI Spiked
RtUv)anGnuvtþeLIgcMeBaHRKb; PaKsMNakTaMgGs;vijEdr. RkUm:atURkamrbs; Spiked
seGayeXIjfaRKb;FatuviPaKTaMgGs; kñúgl,aysUluysüúgsþg;da BitCaGacRtUv)anrkeXIjEmn. eKGacniyay)anfa eKBitCaGac rkRslay DDTs nig PCBs TaMgenaHeXIj RbsinebIvamankñúgsMNakviPaK b¤fabrimaN rbs;vasßitkñúgtMélEdnkMMNt;Edlm:asIunGacvas;)an. 5>3 lT§plBIkareyabklIBItkareFVIeyabklIBIt)aneGaytMélCaelxénm:aslIBItmFümkñúgPaKsMNak 5 g nig PaKryénlIBItEdlmankñúgBBYkxüg nigex©A. m:aslIBItEdlmankñúg 5 g
PaKsMNakman minelIsBI 0.15 g
b¤famanminelIsBI 0.03g
kñúgmYyRkamPaKsMNakesImenaHeT. cMENkÉ PaKrylIBItvijmanminelIsBI
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3 % énm:asPaKsMNakesImeLIy. enHbBa¢ak;fa xüg nigex©A CastVTwkEdlmanpÞúklIBItkñúgbrimaNmYyTab. 5>4 esckþIsnñidæan
tamlT§plénkarviPaK eyIgmin)anrkeXIjsarFatuEdleyIgcg;rkeT EtebIeTaHCa y:agNa eyIgminGacsnñidæanfaBMumanvtþmansarFatuTaMgenaHkñúgPaKsMNakeLIy. karenH GacbNþalmkBIbrimaNrbs;vamanticeBk. KYrbBa¢ak;Edrfa lT§plénkarRsavRCavenHmin GactMNageGaykMritbMBulelIxüg nigex©Arbs;tMbn;sikSanImYy²TaMgmUl)aneT edayehtufa ry³eBlénkarsikSaxøI cMnYnPaKsMNakmankMrit ehIykarRbmUleFVIeLIgRtwmEtmYyelIk b:ueNÑaH. cMeBaHlT§plBIbwgeCIgÉk hak;dUcCaxusBIlT§plénkarsikSakñúgeBlknøgmk. KYrrMlwkfa karsikSarbs; Chak Sengheat (2009) )anbgðajfamanvtþmanrbs; p,p’-DDT nig p,p’-DDE rhUtdl; 100 ppb CamYynwg PCBs
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mYycMnYneTotenAkñúgdIl,ab;)atbwgeCIgÉk. enHGacbNþalmkBI xügEdlykmkviPaKrs;enAedayBwgEp¥kesÞIrEtTaMgRsugelIkarciBa©wm CIvitedaykarsIurukçCatiTwkdUcCaRtkYnEdlmanelIépÞbwg. bEnßmelIenH edaysarEtmUlehtu énCMerATwk nigsßanPaBTwk (PaBkxVk;)
xügTaMgenHminmanTMenarcuHeTAdl;dIl,ab;)atbwgEdl RtUv)anrkeXIjfargkarbMBuleday DDTs
nig PCBs enaHeT. tamkarkMNt;rbs; WHO brimaNrbs;
DDTs kñúgcMNIGaharRtUvmanminelIsBI 5 mg /Kg xøaj;stV cMENkÉbrimaNEdleyIgGacrkeXIj (MDL)
rbs; DDTs manrhUtdl; 0.4 ppm b¤ 0.4 mg/Kg
m:asPaKsMMNakEdlCakMritmYyticEmETn. ebIeTaHCay:agNa ehacNas;k¾eyIgGacniyay)anfabrimaN DDTs nig PCBs kñúgex©A xüg (ebIeTaHCaman eRkamkMritEdlGacvas;)an)
k¾minsßitkñúgkMriteRKaHfñak;EdlKYreGayRBYy)armÖenaHEdr.
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5>5 bBaðaEdlCYbRbTHkñúgdMeNIrkarBiesaFn_
bBaðacMbgmYy EdlCYbRbTHkñúgdMeNIrkarsikSaenHKW PaBrGak;rGYledaysarPaB cMNas;rbs;m:asIun HPLC
EdleRbIsMrab;karRsavRCavenHEtmþg. Cajwkjab; eyIgRtUvcMNay eBly:agyUredIm,Ilagsñb; nigkUeLanrbs;vaCamYYyRbU)a:n-2-
Gul edIm,IsMrYldl;dMeNIrkar rbs;vaeGayFmµtaeLIgvij ebIBMuenaHeTsMBaFrbs;sñb;nwgFøak;dl;sUnü. EteTaHCay:agNa sñaédénkarRsavRCavenH enAEtGacsMercCarUbrageLIgsMrab;CacMeNHdwg Bt’man bTBiesaFn_ k¾dUcCaÉksareyagsMrab;karRsavRCavelIkeRkayeTotEdr. 5>6 Gnusasn_sMrab;karRsavRCavelIkeRkayTajecjBIkarRsavRCavBImunEdl)anbgðajvtþmanrbs; DDTs nig PCBs kñúgdIl,ab; Pk;enaH
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vaRbEhlCaGacmanTMnak;TMngvtþmanrbs;vakñúgTwk nigRtIkñúgtMbn;sikSaTaMgbIenH. dUcenH eyIgsUmpþl;CaGnusasn_mYycMnYnsMrab;karRsavRCaveRkayeTotdUcCa³
-
begáIncMnYnPaKsMNaksMrab;karRsavRCavelITItaMgTaMgbIenH edIm,ICatMNag eGaytMbn;sikSaTaMgmUl
- KYrmankarsikSaBIbrimaN DDTs
nig PCBs
EdlGacmankñúgRtIrs;enAkñúgtMbn; sikSaTaMgbI
- KYreRbIm:asIun GC
sMrab;karviPaKelIl,ay DDTs nig PCBs eRcInRbePTedIm,I beBa©ósnUvkarRtYtKñaénBicFatuviPaK.
-
KYreRbIR)as;sUluysüúgsþg;dadac;edayELkBIKña edIm,IeCosvagkarekItmankar
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KgBicKña ehIyBi)akkñúgkarKNnakMhab;.
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