Post on 30-Dec-2015
description
Indoor Air QualityIndoor Air Quality
Lee Jung-Hyun
2200937
Department of Civil and Environmental System Engineering
University of Incheon, South Korea
ContentsContents IntroductionIntroduction Importance of indoor air qualityImportance of indoor air quality Study purposeStudy purpose
Main subjectMain subject
Indoor air pollutant and pollution Indoor air pollutant and pollution source source
Effect of Indoor air pollutant Effect of Indoor air pollutant Factors Influencing indoor air quality Factors Influencing indoor air quality
ConclusionConclusion For improving indoor air qualityFor improving indoor air quality
Study purposeStudy purpose Introduction to Indoor AIndoor Air ir
pollutant pollutant and pollution sourceand pollution source
Application box model
-Relation among factors
-How to improve air quality
How influence indoor air pollution to human?
Definition Definition
The condition of the air inside The condition of the air inside buildings, including the extent of buildings, including the extent of pollution caused by smoking, pollution caused by smoking, dust, mites, mold spores, radon, dust, mites, mold spores, radon, and gases and chemicals from and gases and chemicals from materials and appliances.materials and appliances.
What is indoor air quality?What is indoor air quality?
Indoor pollutionIndoor pollution
pollutantpollutant SourceSource
Combustion gases-CO,NOCombustion gases-CO,NO Combustion-furnace, cooking stove, Combustion-furnace, cooking stove, space heater, etc.space heater, etc.
Volatile organic compounds(VOCs)Volatile organic compounds(VOCs) Outgassing of building materials, coatings, wall and Outgassing of building materials, coatings, wall and floor coverings, and furnishingsfloor coverings, and furnishings
FomaldehydeFomaldehyde Outgassing of pressed wood, insulation foamOutgassing of pressed wood, insulation foam
ozeonozeon Duplicator, Air cleaner Duplicator, Air cleaner
Biological agents-molds, Biological agents-molds, spores, dangerspores, danger
Contaminated ventilation systems, petsContaminated ventilation systems, pets
Environmental tobacco Environmental tobacco smokesmoke
Smoking in buildingSmoking in building
RadonRadon Infiltration from soil beneath structureInfiltration from soil beneath structure
Particulate matterParticulate matter CombustionCombustion
AsbestosAsbestos Construction coatings, tile, insulationConstruction coatings, tile, insulation
Indoor Air Pollutants and Typical Indoor Air Pollutants and Typical sourcessources
Importance of indoor air Importance of indoor air qualityquality
Cognizance about Importance of indoor air quality .
Dilution rates of atmospheric pollution
Dilution rates of indoor air pollution
We spend about 90% of our time indoors in our homes, cars, offices, factories, public buildings such as restaurants, malls, and others.
Without proper ventilation, increase concentration
Negative influence on human
PollutantPollutant EffectEffect
Combustion gases-Combustion gases-CO,NOCO,NO
Headache, vertigo, emesis, lung Headache, vertigo, emesis, lung disease disease
Volatile organic compounds(VVolatile organic compounds(VOCs)OCs)
the production of cancerthe production of cancer
FomaldehydeFomaldehyde skin stimulus ,lung cancerskin stimulus ,lung cancer
ozeonozeon stimulus on the respiratory organs , stimulus on the respiratory organs , exhaustion exhaustion
Biological agents-Biological agents-molds, spores, dangermolds, spores, danger
allergic disease, respiratory diseaseallergic disease, respiratory disease
Environmental tobacco Environmental tobacco smokesmoke
Anxiousness, lung disease, lung Anxiousness, lung disease, lung cancercancer
RadonRadon lung cancerlung cancer
Particulate matterParticulate matter stimulus on the respiratory organs stimulus on the respiratory organs and mucous membrane, the and mucous membrane, the
production of cancerproduction of cancer
AsbestosAsbestos skin stimulus ,lung cancerskin stimulus ,lung cancer
Effect of Indoor air Effect of Indoor air pollutantpollutant
(A), exchange (B), indoor concentration
(C), outgassing of building and furniture materials
(D), infiltration from soils (E), removal on interior surfaces
Factors on Influencing indoor air qualityFactors on Influencing indoor air quality(application box model)(application box model)
What is box model?What is box model?
)1)(/(* //1
tqtq eQSCeCCi
S
Q1
C1
Q2
C2
Optional Value Substitution !
IN - OUT + SOURCE
= ACCMULATION
3/1
3100
sec/100
3/100
3/5
mugS
mV
mQ
mugC
mugiC
0 100 2004
6
8
10
12
f t( )
t
Suppose : f(t)=C
V
C
0 100 2004
6
8
10
12
10.1
5.485
f t( )
2001 t
0 100 2004
6
8
10
12
10.1
5.924
f t( )
2001 t
0 100 2004
6
8
10
12
10.1
5.485
f t( )
2001 t
0 100 2005
5.05
5.1
5.1
5.01
f t( )
2001 t
0 100 2004
6
8
10
12
10.1
5.485
f t( )
2001 t
V V/2
Q Q/2
C C/2
0 100 2005
5.05
5.1
5.1
5.005
f t( )
2001 t
ResultResult
(V) is not related to (C) , but inverse proportion with Diffusion Velocity
Q ∝ C
C ∝ C
How to improve Indoor Air QualityHow to improve Indoor Air Quality
IncreaseIncrease amount of ventilation(Q) amount of ventilation(Q)
Decrease Decrease pollutionpollution Concentration Concentration
ConclusionConclusion
Thank you for Thank you for attending attending presentationpresentation ……
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