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Tripura State Pollution Control Board 1

1.0 Introduction:

Durga Puja is the famous festival of Tripura which is celebrated over

four days in autumn. This year this festival was celebrated during

October 20-23, 2015. During any festival loudspeakers, mikes, sound

boxes and other sound systems are used in all the puja pandles.

Indiscriminate use of microphones alongwith loudspeakers through

out the day and night produce sound that exceeds the tolerable limits.

Durga puja is no exception.

Moreover, people at large are on the roads moving from pandle to

pandle. The rapid pace of development, volume of mobilization,

construction of buildings, uncontrolled population growth including

unabated migration of people, use of air horns in vehicles, musical

systems in the street shops and different social gathering, all

contribute to an increasingly noisy environment. This has been

further exacerbated using sound box/loudspeakers during the festival

seasons.

The Durga puja festival are being celebrated throughout the State and

ends by the immersion of Durga idol in water bodies such as River,

Lake, Pond etc. The Durga idols are made up of degradable and non-

degradable components and paints containing heavy metals. In

Agartala, the capital of Tripura, maximum number of idols are being

immersed mainly in Dashamighat immersion site of Haora River.

Haora River is the lifeline of Agartala city because it fulfills the major

demand of drinking water as well as water for other purposes of the

entire population of Agartala city. The river originating from the

eastern side of the Baramura range flows westerly through the alluvial

plains and passes by the southern embankment of the capital city of

Agartala before finally flowing down into Bangladesh. Our present

work highlights the Pollution load assessment of Haora river water

after idol immersion along with noise level during the Durga puja

event in 2015.

2.0 Noise:

Physically noise is a complex sound with little or no periodicity and

psychologically noise may be defined as the sound that is unpleasant

and unwanted by the listener because of its bothersome nature,

interference with the perception of wanted sound or its harmful

physiological and psychological effects. Unpleasantness and harmful


effects of noise depend upon factors like intensity of sound waves,

frequency, and duration of exposure and intermittence of sound.

Excessive noise can damage the ear. Depending upon the intensity

and duration of noise, the person exposed to it, may suffer from

temporary or permanent noise induced hearing loss. When a person is

exposed to continuous but short period of high intensity noise, the

auditory sensitivity of the ear is reduced temporarily. In addition to

hearing loss, excessive noise may also cause physiological and

psychological disorders. These include nausea, dizziness, indigestion,

metabolic disorder, decreased heartbeats and variation in blood

pressure, breathing difficulties and harmful effects on limb

coordination and thinking ability. The mildest psychological effects of

noise are physical & mental fatigue and lack of concentration. These

in turn, lead to lowered efficiency, reduced output, increased

absenteeism and higher rates of accidents.

3. Immersion of Idols:

After the Durga puja worship, the durga deity of both the clubs and

houses of Agartala are being immersed mainly in the Haora River, the

lifeline river of Agartala. These Durga Idols are constructed by plaster

of paris, clay, cloths, small iron rods, bamboo and decorated with

different paints such as varnish, water colors etc. which can lead to

significant alteration in the water quality after immersion. Paints

which are used to color these idols contain various heavy metals such

as Mercury, Cadmium, Arsenic, Zinc, Chromium and Lead.

Particularly red, blue, orange and green colors may contain mercury,

zinc oxide, chromium and lead, which are potent carcinogens. Two

heavy metals such as Lead and Chromium may also add in the water

bodies through Sindoor which is a traditional red colored cosmetic

powder, usually worn by married women and often used in the

festivals. The floating materials released through idol in the river and

lake after decomposition result in eutrophication, increase in acidity

and heavy metal concentration. Heavy metal pollution caused by idol

immersion can damage the ecosystem as it kills fishes, damages

plants, blocks the natural flow of the water.


6.0 Objectives:

A. Noise Level Monitoring:

In order to assess the noise level during Durga puja, noise monitoring were carried out in and around Agartala city covering the impacts of almost every puja pandles during 20-23 October, 2015.

The main objectives of Noise Monitoring are:

To assess the ambient Noise Level status in and around Agartala

city during Durgapuja festival.

To compare the measured Noise Levels against ambient Noise standards and to asses the extent of violation during this festival.

To identify significant factors and its individual impact and

suggest alternative measures

To find collective significant factor and its collective impacts as to help to the planners to take decision at the earliest possible stage

To facilitate in evolving policy for laying down standards and to

formulate legal action for punishment and prohibiting, and preventing noise

To communicate the information gathered to the public for awareness

B. Water Quality Monitoring at Idol Immersion site:

The main objectives of water quality monitoring are:

Monitoring the water quality of Dashamighat idol immersion

point as because large number of durga idols immersed on this site of Haora River during the puja event.

To compare the water analysis result against standards value of

BIS (Bureau of Indian Standards) and to assess the extent of swinging during this festival.

To highlight the condition of this river water after idol immersion

with respect to the parameters analyzed.

To find collective significant factor and its collective impacts as to help to the planners to take decision at the earliest possible stage.

https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjW36rG46XJAhVJJZQKHQ78DEEQFggcMAA&url=http%3A%2F%2Fwww.bis.org.in%2F&usg=AFQjCNEzh2cdyBNAczIhtbkLontZj1bA0g&sig2=DCN16kYd_74oc7ww23P9rQ


To communicate the information gathered to the public for awareness

7.0 Methods of Measurement:

A. Noise Level Monitoring:

Sound Level Meters (SLM) SL-4001 (Make : Lutron) was used for

monitoring of noise levels. The noise levels were monitored at least for 30 minutes at each location during monitoring.

Leq Formula:

The „root mean square‟ quantity of a sound wave is known as

r.m.s. excess pressure or more commonly as sound pressure.

Sound level is the sound pressure level in decibels (dB) and is

20 times the logarithm to the base ten of the ratio of a weighted sound

pressure to the reference sound pressure. This is expressed as force

per unit area either in Newtons per square metre (N/m2) or in Pascals

(Pa).

“A- Weighted” means making graded adjustments in the

intensities of the sound of various frequencies for the purpose of noise

measurement so that the sound pressure level measured by an

instrument reflects the actual response of the human ear to the sound

measured.

Steady Sound pressure Level which over the given period of time

would have given the same total energy as the actual fluctuating time.

Thus Leq is the r.m.s sound pressure level taking the measurement duration as the averaging time. It is calculated as follows: n

Leq. = 10 log( fi 10 Li/10 )

i=1

Fi = Fraction of time for which the consent SPL persists

Li = Sound Intensity Level

Lmin = Minimum Noise Level during the period of measurement Lmax = Maximum Noise Level during the period of measurement


B. Water Quality Monitoring: The water samples were collected from Dashamighat idol immersion

point during pre-immerse, immerse and post-immerse periods of idols

immersion. The first phase study i.e. before (Pre) was made to

understand the base line level of metal concentrations in the estuary,

whereas second phase i.e. during immersion was aimed to establish

actual impact of immersion of images, on the river Haora. The post-

immersion study was scheduled after one week of immersion activity,

and aimed to correlate the data with previous study. The water

samples were collected in well rinsed and pre-cleaned glass bottles

and immediately brought to the laboratory of Tripura State Pollution

Control Board. The analysis of the said water samples have been done

in the laboratory of Tripura State Pollution Control Board using

standard methods of APHA (2005). The different parameters studied

are as follows :

Sl. No.

Parameters Indian Standard for Surface Water

1. Temperatures (0C) -

2. pH 8.5

3. Turbidity (NTU) -

4. Conductivity (µS/cm) -

5. Salinity (PSU) -

6. DO (mg/l)

5

7. BOD (mg/l) 3

8. Total Suspended Solids (mg/l) -

9. Total Dissolved Solids (mg/l) -

10. Alkalinity (mg/l)

-

11. Total Hardness (mg/l) -

12. Calcium (mg/l) -

13. Magnesium (mg/l) -

14. Chloride (mg/l)

-

15. Chromium (mg/l) 0.05

16. Lead (mg/l) 0.1

17. Cadmium (mg/l)

0.01

18. Arsenic (mg/l) 0.05


8.0 Monitoring Points:

A. Noise Level Monitoring: The noise monitoring were conducted in the 12 locations in and

around Agartala covering West Tripura District, 6 locations in and

around Udaipur covering Gomati District, 5 locations in and around

Ambassa covering Dhalai District and 6 locations in and around

Kumarghat town covering Unakoti District during Durga Puja festival,

2015. All the locations and monitoring points are given in Table-1-4.

The Maps indicating District level locations are as follows :

Map: District wise Monitoring points.


Table-1 Locations of Noise Level Monitoring in Agartala during Durgapuja festival-2015

Sl No

Locations

Category

1. G.B. Hospital Chowmuhani Silent

2. New Capital Complex Quarter Residential

3. Buddha Mandir Commercial

4. Durga Chowmuhani Commercial

5. Agantuk Club, Gol Chakkar Residential

6. Bordowali Residential

7. Paradise Chowmuhani Commercial

8. Ramthakur Sangha Commercial

9. M.B.B. College Silent

10. Ashram Chowmuhani Commercial

11. Old Jail khana Chowmuhani Residential

12. Bodhjung Chowmuhani Silent

Table-2 Locations of Noise Level Monitoring in Udaipur during Durgapuja festival-2015

Sl

No

Locations

Category

1. Dhajanagar Commercial

2. Bridge Chowmuhani

Residential

3. West bank of Amar Sagar Residential

4. Udaipur District Hospital

Silent

5. Bramha Bari

Commercial

6. Matabari

Silent


Table-3 Locations of Noise Level Monitoring in Ambassa during Durgapuja festival-2015 Sl No Locations Category

1. Ambasa Market Autostand Commercial

2. Kulai Bazar Commercial

3. District Hospital Silent

4. Jawaharnagar Office complex Residential

5. Ambassa PHC Silent

Table-4 Locations of Noise Level Monitoring in Kumarghat during Durgapuja festival-2015

Sl No Locations Category

1. Near Kumarghat Police Station Residential

2. Kumarghat Railway Station Commercial

3. Near Kumarghat Co-operative Bank Residential

4. Pabiacherra H.S. School Silent

5. Near Kumarghat Rural Hospital Silent

6. Kumarghat Motorstand Commercial

B. Water Quality Monitoring: For assessing the impact of immersion of painted/colored deities

containing various toxic heavy metals such as Lead, Cadmium,

Copper, Zinc, Chromium etc. river water samples were collected at

Dashamighat, the stretch where maximum Durga idols of Agartala city

were immersed. The water samples were collected before, during and

after the immersion of idols during Durga Puja festival, 2015.

9.0 Findings:

A. Noise Level Monitoring : The findings from Noise Monitoring carried out by the Tripura State

Pollution Control Board during 20-23rd October, 2015 are shown in

the Tables 5-16. The comparative study of noise level at Agartala,

Udaipur, Ambassa and Kumarghat are at Tables 17-28. The graphical

representation of the noise level of Saptami, Ashtami and Nabami

during Day Time & Night Time at Agartala, Udaipur, Ambassa and

Kumarghat are at Figures 1-8.


Table: 5: Noise Levels in dB (A) at Different Puja Pandles of Agartala on 20.10.2015 (Saptami

Puja) during Durga Puja Festival-2015 Sl No

Monitoring Points Zone Category Day Time (6.00 am to 10.00 pm)

Night Time (10.00 pm to 6.00 am)

Remarks

Lmin Lmax Leq Lmin Lmax Leq

1. G.B. Hospital

Chowmuhani

Silent 72.3 73.3 69.19 63.9 69.8 62.58 Vehicular Movement

2. N.C.C Quarter Residential 58.7 67.0 56.87 50.7 51.4 50.30 -

3. Buddha Mandir Commercial 69.9 82.8 71.46 70.0 81.6 70.45 Public gathering

4. Durga Chowmuhani Commercial 71.3 74.8 71.57 69.5 75.3 69.65 Sound System,

Playing of Mike

5. Agantuk Club, Gol Chakkar

Residential 78.8 84.1 78.10 68.0 81.2 70.22 Vehicular Movement, Sound system

6. Bordowali Residential 78.4 88.2 79.65 96.7 99.0 94.79 Vehicular Movement, High Sound system

7. Paradise

Chowmuhani

Commercial 75.8 80.6 75.33 80.5 86.0 78.96 Public gathering

8. Ramthakur Sangha Commercial 79.7 82.6 79.64 79.6 80.6 77.57 Vehicular Movement,

Public gathering

9. M.B.B. College Silent 55.8 59.0 54.57 53.8 56.0 50.61 -

10. Ashram Chowmuhani

Commercial 69.4 72.5 68.92 77.9 81.3 75.72 Vehicular Movement

11. Old Jail Chowmuhani

Residential 71.1 85.3 72.90 62.7 64.0 61.46 Vehicular Movement

12. Bodhjung Chowmuhani

Silent 75.2 76.2 74.32 80.3 84.0 77.93 Playing of Sound

System and mike.

Note: Almost in all locations Human Crowd, Vehicular movement and public address systems were there during monitoring at Day & Night Time.


Table: 6: Noise Levels in dB (A) at Different Puja Pandles of Agartala on 21.10.2015 (Astami

Puja) during Durga Puja Festival-2015

Sl No

Monitoring Points Zone Category

Day Time (6.00 am to 10.00 pm)


Remarks


1. G.B. Hospital Chowmuhani Silent 53.1 59.3 53.85 56.3 57.9 54.55 -


3. Buddha Mandir Commercial 77.3 89.3 78.81 71.9 75.0 71.54 Vehicular Movement

4. Durga Chowmuhani Commercial 77.7 83.3 78.52 69.3 76.8 69.68 Vehicular Movement

and playing of sound system

5. Agantuk Club, Gol

Chakkar


6. Bordowali Residential 85.2 85.0 79.61 91.0 95.1 89.48 Loud Speaker, Mike

Sound

7. Paradise Chowmuhani Commercial 69.6 74.6 70.82 74.4 76.6 71.48 Public gathering

8. Ramthakur Sangha Commercial 77.6 86.1 79.85 81.6 85.4 80.97 Vehicular Movement


10. Ashram Chowmuhani Commercial 63.2 72.3 64.10 77.6 80.1 75.36 Cultural Program

11. Old Jail Chowmuhani Residential 67.3 71.9 67.61 69.5 73.0 70.40 Vehicular movement

12. Bodhjung Chowmuhani Silent 84.9 89.5 85.27 80.0 82.9 78.85 Loud Speaker, High

Sound Box



Table: 7: Noise Levels in dB (A) at Different Puja Pandles of Agartala on 22.10.2015 (Nabami


Sl No




Remarks


1. G.B. Hospital

Chowmuhani

Silent 58.2 60.4 56.95 42.0 45.3 41.43 -


3. Buddha Mandir Commercial 69.8 72.6 68.17 60.3 63.3 60.81 Public gathering, Sound

system

4. Durga Chowmuhani Commercial 70.7 79.7 72.48 68.2 76.8 69.56 Vehicular Movement and

Playing of mike



6. Bordowali Residential 69.6 75.7 71.22 70.4 77.9 73.05 Vehicular Movement

7. Paradise Chowmuhani Commercial 74.9 80.5 73.50 72.6 76.7 72.58 Public gathering and

vehicular movement

8. Ramthakur Sangha Commercial 71.6 83.8 73.98 77.7 78.8 76.22 Vehicular Movement,

public gathering


10. Ashram Chowmuhani Commercial 76.0 81.6 76.97 77.7 84.6 76.48 Vehicular movement

11. Old Jail Chowmuhani Residential 68.8 76.4 69.30 66.5 70.5 66.87 Vehicular Movement

12. Bodhjung Chowmuhani Silent 67.7 68.8 65.26 71.5 76.2 70.96 Vehicular Movement

Note: Almost in all locations Human Crowd, Vehicular movement and public address systems were there during

monitoring at Day & Night Time.


Table: 8: Noise Levels in dB (A) at Different location of Udaipur City on 20.10.2015 (Saptami


Sl No.




Remarks


1. Dhajanagar Commercial 66.4 92.1 74.56 62.5 78.9 66.56 Vehicular movement, public

gathering

2. Bridge

Chowmuhani

Residential 65.5 84.3 71.71 68.9 81.2 69.89 Playing of Sound system and

mike

3. West bank of Amar Sagar

Residential 55.7 73.4 60.48 51.2 62.6 52.18 Vehicular movement

4. Udaipur District

hospital

Silent 57.5 70.8 60.03 48.9 55.9 48.15 Vehicular movement, public

gathering

5. Bramha Bari

Commercial 66.9 82.5 70.65 65.5 85.6 70.29 Playing of Mike

6. Matabari

Silent 52.6 60.7 55.34 40.8 58.1 46.73 Vehicular movement, public

gathering



Table: 9: Noise Levels in dB (A) at Different location of Udaipur City on 21.10.2015 (Aastami


Sl No.




Remarks


1. Dhajanagar

Commercial 66.9 88.3 74.44 61.2 81.5 68.60 Vehicular movement, public gathering


Residential 66.9 88.3 73.10 58.9 78.0 63.82 Playing of Sound

system and mike



4. Udaipur District hospital

Silent 51.4 70.1 55.73 42.0 56.2 45.49 Vehicular movement, public gathering

5. Bramha Bari

Commercial 60.8 80.0 66.89 60.0 75.8 62.50 Playing of Mike

6. Matabari Silent 44.5 60.8 48.22 41.5 60.0 44.45 Vehicular movement,

public gathering



Table: 10: Noise Levels in dB (A) at Different location of Udaipur City on 22.10.2015 (Nabomi


Sl No.

Monitoring Points Zone Category Day Time (6.00 am to 10.00 pm)


Remarks


1. Dhajanagar Commercial 68.3 90.1 74.37 61.2 72.5 63.77 Vehicular movement, public

gathering

2. Bridge Chowmuhani Residential 66.0 89.1 71.79 62.8 78.2 67.05 Playing of Sound system and mike

3. West bank of Amar

Sagar


4. Udaipur District hospital Silent 49.8 65.5 53.28 42.0 61.2 48.63 Vehicular movement, public

gathering

5. Bramha Bari Commercial 69.2 87.9 73.87 59.1 70.1 62.15 Playing of Mike

6. Matabari Silent 50.3 65.2 52.32 41.7 60.1 47.77 Vehicular movement, public

gathering




Table: 11: Noise Levels in dB (A) at Different location of Ambassa on 20.10.2015 (Saptami


Sl No.




Remarks


1. Ambasa Market

Autostand

Commercial 91.5 98.8 90.08 71.4 75.2 71.92 Vehicular Movement, Sound

system

2. Kulai Bazar Commercial 83.3 86.2 83.33 67.1 71.3 68.17 Vehicular Movement, Sound system

3. District Hospital Silent 62.6 67.1 63.07 56.6 60.3 56.66 Vehicular Movement, Sound system

4. Jawaharnagar Office

complex

Residential 74.6 80.3 75.83 58.8 63.3 59.9 Playing of Mike

5. Ambassa PHC Silent 61.2 66.6 62.28 58.5 64.4 60.08 Vehicular Movement, Sound system




Table: 12: Noise Levels in dB (A) at Different location of Ambassa on 21.10.2015 (Aastami Puja)

during Durga Puja Festival-2015

Sl No.




Remarks


1. Ambasa Market

Autostand

Commercial 76.1 80.5 76.98 69.6 74.5 71.0 Vehicular

Movement, Sound system


3. District Hospital Silent 57.3 61.5 57.99 53.7 58.9 54.84 Vehicular Movement,

Sound system


complex

Residential 58.3 62.8 59.60 55.7 58.8 55.75 Playing of

Mike




Table: 13: Noise Levels in dB (A) at Different location of Ambassa on 22.10.2015 (Nabomi Puja)

during Durga Puja Festival-2015

Sl No.




Remarks


1. Ambasa Market

Autostand

Commercial 91.7 96.3 92.43 77.4 81.3 78.02 Vehicular

Movement, Sound system


3. District Hospital Silent 62.6 66.7 63.16 56.5 61.6 57.38 Vehicular Movement, Sound

system


complex

Residential 57.5 62.2 58.28 54.7 59.2 55.50 Playing of Mike




Table: 14: Noise Levels in dB (A) at Different location of Kumarghat on 20.10.2015 (Saptami

Puja) during Durga Puja Festival-2015 Sl No.




Remarks


1. Near Kumarghat Police

Station

Residential 69.5 70.1 64.91 68.3 71.0 67.87 Vehicular

movement, Sound system

2. Kumarghat Railway Station

Commercial 66.6 68.7 64.99 73.8 74.1 70.14 Playing of Sound system and mike

3. Near Kumarghat Coperative Bank

Residential 88.4 89.0 85.18 82.1 83.5 80.45 Public gathering, Playing of Drum

4. Pabiacherra HS School Silent 73.5 74.6 71.98 70.5 72.4 69.10 Vehicular

movement, public gathering

5. Near Kumarghat Hospital

Silent 69.2 70.4 67.33 71.6 72.6 70.81 Playing of Mike and Drum

6. Kumarghat Motorstand Commercial 80.5 80.4 76.89 73.1 74.2 72.02 Vehicular movement, public

gathering



Table: 15: Noise Levels in dB (A) at Different location of Kumarghat on 21.10.2015 (Aastami Puja) during Durga Puja Festival-2015 Sl No.




Remarks


1. Near Kumarghat Police

Station

Residential 77.6 78.6 73.45 72.5 73.4 71.08 Vehicular movement,

Sound system

2. Kumarghat Railway

Station

Commercial 78.5 78.9 75.47 76.4 79.1 74.20 Playing of Sound

system and mike

3. Near Kumarghat Coperative Bank

Residential 85.6 86.4 83.30 83.6 85.3 82.07 Public gathering, Playing of Drum

4. Pabiacherra HS School Silent 71.6 72.6 69.10 74.1 76.0 72.94 Vehicular movement, public gathering



6. Kumarghat Motorstand Commercial 87.4 88.6 85.82 75.1 78.3 74.21 Vehicular movement, public gathering



Table: 16: Noise Levels in dB (A) at Different location of Kumarghat on 22.10.2015 (Nabomi Puja) during Durga Puja Festival-2015

Sl

No.

Monitoring Points Zone

Category

Day Time

(6.00 am to 10.00 pm)

Night Time

(10.00 pm to 6.00 am)

Remarks


1. Near Kumarghat Police Station

Residential 64.6 67.4 63.29 66.8 67.2 65.53 Vehicular movement, Sound

system


Commercial 74.6 78.6 74.67 71.0 73.1 70.35 Playing of Sound system and mike

3. Near Kumarghat

Coperative Bank

Residential 84.6 89.8 86.05 81.8 82.7 80.53 Public gathering,

Playing of Drum

4. Pabiacherra HS School Silent 71.6 75.1 71.77 73.4 74.8 72.02 Vehicular movement, public gathering



6. Kumarghat Motorstand Commercial 77.5 83.1 77.49 79.9 80.1 75.55 Vehicular

movement, public gathering


monitoring at Day & Night


Table 17: Comparison of the Noise Levels at Day Time and Night Time during Durga Puja Festival at Agartala in Saptami puja with the

Standard value. Sl

No

Locations Category Noise

Level at Day time

Noise

Level at Night time

Standard

Value at Day time

Standard

Value at Night time

1. G.B. Hospital Chowmuhani

Silent 69.19 62.58 50 40

2. N.C.C Quarter Complex

Residential 56.87 50.30 55 45

3. Buddha Mandir

Commercial 71.46 70.45

65 55

4. Durga

Chowmuhani Commercial 71.57 69.65

65 55


Residential 78.10 70.22 55 45

6. Bordowali

Residential 79.65 94.79

55 45

7. Paradise Chowmuhani

Commercial 75.33 78.96 65 55

8. Ramthakur Sangha

Commercial 79.64 77.57 55 55

9. M.B.B. College

Silent 54.57 50.61 50 40


Commercial 68.92 75.72 65 55


Residential 72.90 61.46 55 45

12. Bodhjung

Chowmuhani

Silent 74.32 77.93

50 40


Table 18: Comparison of the Noise Levels at Day Time and Night Time during Durga Puja Festival at Agartala in Astami puja with the

Standard value.

Sl No

Locations Category Noise Level at

Day time

Noise Level at

Night time

Standard Value at

Day time

Standard Value at

Night time

1. G.B. Hospital

Chowmuhani

Silent 53.85 54.55

50 40

2. N.C.C Quarter

Complex


55 45

3. Buddha Mandir

Commercial 78.81 71.54 65 55

4. Durga Chowmuhani

Commercial 78.52 69.68 65 55


Residential 60.23 69.60 55 45

6. Bordowali


55 45


Commercial 70.82 71.48 65 55

8. Ramthakur

Sangha


55 55

9. M.B.B. College

Silent 62.73 45.66

50 40

10. Ashram

Chowmuhani

Commercial

64.10 75.36

65 55



55 45

12. Bodhjung

Chowmuhani

Silent 85.27 78.85

50 40


Table 19: Comparison of the Noise Levels at Day Time and night time during Durga Puja Festival at Agartala in Nabami puja with the

Standard value. Sl

No

Locations Category Noise Level

at Day time

Noise Level

at Night time

Standard

Value at Day time

Standard

Value at Night time

1. G.B. Hospital Chowmuhani

Silent 56.95 41.43 50 40

2. N.C.C Quarter Residential 46.77 36.52 55 45

3. Buddha

Mandir

Commercial 68.17 60.81 65 55

4. Durga Chowmuhani

Commercial 72.48 69.56 65 55

5. Agantuk

Club, Gol Chakkar

Residential 67.83 58.22 55 45

6. Bordowali Residential 71.22 73.05 55 45


Commercial 73.50 72.58 65 55

8. Ramthakur Sangha

Commercial 73.98 76.22 55 55

9. M.B.B.

College

Silent 64.42 50.37 50 40


Commercial 76.97 76.48 65 55


Residential 69.30 66.87 55 45

12. Bodhjung

Chowmuhani

Silent 65.26 70.96 50 40


Table 20: Comparison of the Noise Levels at Day Time and night time during Durga Puja Festival at Udaipur in Saptami puja with the

Standard value.

Sl No


Day time

Noise Level at

Night time

Standard Value at

Day time

Standard Value at

Night time

1. Dhajanagar Commercial 74.56 66.56 65 55


Residential 71.71 69.89 55 45


Residential 60.48 52.18 55 45

4. Udaipur District

Hospital Silent 60.03 48.15

50 40

5. Bramha Bari


65 55

6. Matabari

Silent 55.34 46.73 50 40

Table 21: Comparison of the Noise Levels at Day Time and night time during Durga Puja Festival at Udaipur in Astami puja with the

Standard value.

Sl No


Day time

Noise Level at

Night time

Standard Value at

Day time

Standard Value at

Night time

1. Dhajanagar

Commercial 74.44 68.60 65 55


Residential 73.10 63.82 55 45

3. West bank of

Amar Sagar Residential 59.95 47.73

55 45

4. Udaipur District hospital

Silent 55.73 45.49 50 40

5. Bramha Bari

Commercial 66.89 62.50 65 55

6. Matabari

Silent 48.22 44.45 50 40


Table 22: Comparison of the Noise Levels at Day Time and night time during Durga Puja Festival at Udaipur in Nabami puja with the

Standard value.

Sl No


Day time

Noise Level at

Night time

Standard Value at

Day time

Standard Value at

Night time

1. Dhajanagar


65 55


Residential 71.79 67.05 55 45


Residential 58.18 50.35 55 45

4. Udaipur

District hospital

Silent 53.28 48.63

50 40

5. Bramha Bari

Commercial 73.87 62.15 65 55

6. Matabari

Silent 52.32 47.77

50 40

Table 23: Comparison of the Noise Levels at Day Time and night time during Durga Puja Festival at Ambassa in Saptami puja with the

Standard value.

Sl No

Locations Category Noise Level at Day time

Noise Level at

Night time

Standard Value at

Day time

Standard Value at

Night time

1. Ambasa Market Autostand

Commercial 90.08 71.92 65 55

2. Kulai Bazar


65 55

3. District Hospital

Silent 63.07 56.66 50 40

4. Jawaharnagar Office complex

Residential 75.83 59.9 55 45

5. Ambassa PHC

Silent 62.28 60.08 50 40


Table 24: Comparison of the Noise Levels at Day Time and night time during Durga Puja Festival at Ambassa in Astami puja with the

Standard value.

Sl No


Day time

Noise Level at

Night time

Standard Value at

Day time

Standard Value at

Night time

1. Ambasa Market

Autostand Commercial 76.98 71.0 65 55

2. Kulai Bazar

Commercial 80.20 73.58 65 55


Silent 57.99 54.84 50 40

4. Jawaharnagar

Office complex Residential 59.60 55.75

55 45

5. Ambassa PHC

Silent 65.00 55.27 50 40

Table 25: Comparison of the Noise Levels at Day Time and night time during Durga Puja Festival at Ambassa in Nabomi puja with the

Standard value. Sl No


Day time

Noise Level at

Night time

Standard Value at

Day time

Standard Value at

Night time

1. Ambasa Market Autostand

Commercial 92.43 78.02 65 55

2. Kulai Bazar

Commercial 76.11 73.47 65 55


Silent

63.16 57.38 50 40

4. Jawaharnagar

Office complex Residential

58.28 55.50 55 45

5. Ambassa PHC

Silent 79.82 62.03 50 40


Table 26: Comparison of the Noise Levels at Day Time and Night Time during Durga Puja Festival at Kumarghat in Saptami puja with the

Standard value.

Sl No


Day time

Noise Level at Night

time

Standard Value at

Day time

Standard Value at

Night time

1. Near Kumarghat

Police Station


55 45

2. Kumarghat

Railway Station Commercial 64.99 70.14

65 55

3. Near Kumarghat

Co-operative Bank

Residential 85.18 80.45 55 45

4. Pabiacherra H.S. School

Silent 71.98 69.10 50 40

5. Near Kumarghat

Rural Hospital Silent 67.33 70.81

50 40

6. Kumarghat Motorstand

Commercial 76.89 72.02 65 55

Table 27: Comparison of the Noise Levels at Day Time and Night Time during Durga Puja Festival at Kumarghat in Astami puja with the

Standard value.

Sl No

Locations Category Noise Level at Day time

Noise Level at Night

time

Standard Value at Day time

Standard Value at

Night time

1. Near Kumarghat

Police Station


55 45


Commercial 75.47 74.20 65 55

3. Near Kumarghat

Co-operative Bank


55 45


Silent 69.10 72.94 50 40

5. Near Kumarghat Rural Hospital

Silent 66.91 70.88 50 40

6. Kumarghat

Motorstand Commercial 85.82 74.21

65 55


Table 28: Comparison of the Noise Levels at Day Time and night time during Durga Puja Festival at Kumarghat in Nabami puja with the

Standard value.

Sl No


Day time

Noise Level at

Night time

Standard Value at

Day time

Standard Value at

Night time

1. Near Kumarghat

Police Station

Residential 63.29 65.53 55 45

2. Kumarghat

Railway Station

Commercial 74.67 70.35 65 55

3. Near Kumarghat Co-operative

Bank

Residential 86.05 80.53 55 45


Silent 71.77 72.02 50 40

5. Near Kumarghat

Rural Hospital

Silent 61.88 61.10 50 40

6. Kumarghat

Motorstand

Commercial 77.49 75.55 65 55


Fig-1 : Graphical Representation of Comparative Noise Level (Day Time) at Different

Locations of Agartala City During Durga Puja

Fig-2 : Graphical Representation of Comparative Noise Level (Night Time) at Different Locations of Agartala City During Durga Puja


Fig-3 : Graphical Representation of Comparative Noise Level (Day Time) at Different Locations of Udaipur City During Durga Puja

Fig-4 : Graphical Representation of Comparative Noise Level (Night Time) at Different Locations of Udaipur City During Durga Puja


Fig-5 : Graphical Representation of Comparative Noise Level (Day Time) at Different Locations of Ambassa City During Durga Puja

Fig-6 : Graphical Representation of Comparative Noise Level (Night Time) at Different

Locations of Ambassa City During Durga Puja


Fig-7 : Graphical Representation of Comparative Noise Level (Day Time) at Different Locations of Kumarghat City During Durga Puja

Fig-8 : Graphical Representation of Comparative Noise Level (Night Time) at Different Locations of Kumarghat City During Durga Puja


B. Water Quality Monitoring: The Analytical results of water samples collected from Dashamighat idol immersion site

of Haora river before, during and immersion of Durga idols by the Tripura State

Pollution Control Board in 2015 are shown in the Tables 29-31.

Table: 29: Analytical results of water samples collected from Dashamighat idol immersion site of Haora River before immersion.

Sl. No.

Parameters S1 S2 S3 Average value

Indian Standard

for Surface Water

1. Temperatures (0C)

28 29 29 28.66 -

2. pH 7.05 7.17 7.11 7.11 8.5

3. Turbidity (NTU)

82.2 98.2 77.8 86.06 -

4. Conductivity (µS/cm)

9.12 9.16 9.07 9.11 -

5. Salinity (PSU)

0.02 0.02 0.02 0.02 -

6. DO (mg/l) 5.6 5.8 6.1 5.83 5

7. BOD (mg/l) 1.2 2.3 1.7 1.73 3

8. Total Suspended Solids (mg/l)

48 68 52 56 -

9. Total Dissolved Solids (mg/L)

98 112 98 102.66 -

10. Alkalinity (mg/l) 78.1 78.1 73.1 76.43 -

11. Total Hardness (mg/l)

49.0 58.8 58.8 55.53 -

12. Calcium (mg/l) 8.3 11.7 9.8 9.93 -

13. Magnesium

(mg/l)

2.6 4.3 4.1 3.66 -

14. Chloride (mg/l) 24.07 28.8 28.8 27.22 -

15. Chromium (mg/l) 0.01 0.03 0.01

0.01 0.05

16. Lead (mg/l) 0.01 0.06 0.03

0.03 0.1

17.

Cadmium (mg/l) 0.002 0.008 0.002 0.004 0.01

18. Arsenic (mg/l) Nil 0.01 Nil 0.003 0.05

S1: Up Stream of Haora River.

S2: Dahamighat Idol Immersion Site, Haora River

S3: Downstream of Haora river.


Table: 30: Analytical results of water samples collected from Dashamighat Idol Immersion site of Haora River during immersion

Sl. No.


Indian Standard for

Surface Water


29 29 29 29 -

2. pH

6.3 6.8 6.7 6.6 8.5

3. Turbidity (NTU)

122 137 126 128.33 -


8.9 8.9 9.7 9.16 -

5. Salinity (PSU)

0.02 0.02 0.02 0.02 -

6. DO (mg/l)

5.3 5.3 5.1 5.23 5

7. BOD (mg/l)

1.9 2.1 2.3 2.1 3

8. Total Suspended

Solids (mg/l)

52 88 68 69.33 -

9. Total Dissolved

Solids (mg/l)

102 148 112 120.66 -

10. Alkalinity (mg/l)

73.1 73.1 68.2 71.46 -

11. Total Hardness (mg/l)

58.8 58.8 58.8 58.8 -

12. Calcium (mg/l)

7.2 9.3 9.3 8.6 -

13. Magnesium (mg/l)

3.6 4.1 3.9 3.86 -

14. Chloride (mg/l)

24.07 28.8 36.1 29.65 -

15. Chromium (mg/l)

0.05 0.08 0.06 0.06 0.05

16. Lead (mg/l)

0.10 0.24 0.13 0.15 0.1

17. Cadmium (mg/l)

0.005 0.03 0.01 0.015 0.01

18. Arsenic (mg/l)

Nil 0.02 0.01 0.01 0.05


S2: Dashamighat Idol Immersion Site, Haora River



Table: 31: Analytical results of water samples collected from Dashamighat idol immersion site of Haora river after immersion

Sl. No.


Indian Standard

for Surface

Water


29 30 29 29.33 -

2. pH

6.8 6.7 6.8 6.76 8.5

3. Turbidity (NTU)

81.3 86.6 85.2 84.36 -


7.1 10.1 9.06 8.75 -

5. Salinity (PSU)

0.02 0.02 0.02 0.02 -

6. DO (mg/L)

5.8 5.2 5.7 5.56 5

7. BOD (mg/L)

2.1 3.8 3.4 3.10 3

8. Total Suspended Solids (mg/L)

48 72 56 58.66 -

9. Total Dissolved Solids

(mg/L)

98 122 102 107.33 -

10. Alkalinity (mg/L)

57.5 83.0 68.3 69.6 -

11. Total Hardness (mg/L)

49.0 58.8 49.0 52.26 -

12. Calcium (mg/L)

7.1 8.5 7.8 7.8 -

13. Magnesium (mg/L)

2.6 3.9 3.9 3.46 -

14. Chloride (mg/L)

21.5 23.7 23.1 22.76 -

15. Chromium (mg/L)

0.01 0.03 0.01 0.01 0.05

16. Lead (mg/L)

0.02 0.07 0.04 0.04 0.1

17. Cadmium (mg/L)

0.003 0.01 0.01 0.001 0.01

18. Arsenic (mg/L)

Nil 0.01 Nil 0.003 0.05


S2: Dahamighat Idol Immersion Site, Haora River



10. Observation:

A) Noise Level Monitoring: During Durgapuja Festival the Tripura State Pollution Control Board monitored Noise Level

in 12 locations in and around Agartala, 6 locations in and around Udaipur, 5 locations in

and around Ambassa and 6 locations in and around Kumarghat town. Noise Monitoring

has been conducted in all the locations both at Day Time and Night Time.

The maximum and minimum noise level at Day Time and Night Time at Agartala, Udaipur,

Ambassa and Kumarghat during Durga Puja Festival-2015 are as follows:

Dates Day Time Night Time

Maximum Minimum Maximum Minimum Agartala

Saptami

(20.10.2015)

79.64 dB

(Ram Thakur

Sangha)

54.57 dB

(M.B.B College)

94.79 dB

(Bordowali)

50.30 dB

(N.C.C Quarter complex)

Ashtami (21.10.2015)

85.27dB (Bodhjung

Chowmuhani)

51.82 dB (N.C.C Quarter

complex)

89.48 dB (Bordowali)

45.66 dB (M.B.B College)

Nabami

(22.10.2015)

76.97dB

(Ashram

Chowmuhani)

46.77dB

(N.C.C Quarter)

76.48 dB

(Ashram

Chowmuhani)

36.52 dB

(N.C.C Quarter)

Udaipur

Saptami

(20.10.2015)

74.56 dB

(Dhajanagar)

55.34 dB

(Matabari)

70.29 dB

(Bramha Bari)

46.73 dB

(Matabari)

Ashtami

(21.10.2015)

74.44 dB

(Dhajanagar)

48.22 dB

(Matabari)

68.60 dB

(Dhajanagar)

44.45 dB

(Matabari)

Nabami

(22.10.2015)

74.37 dB

(Dhajanagar)

52.32 dB

(Matabari)

67.05 dB (Bridge

Chowmuhani)

47.77 dB

(Matabari)

Ambassa

Saptami

(20.10.2015)

90.08 dB

(Ambassa market

autostand)

62.28 dB

(Ambassa PHC)

71.92 dB

(Ambassa market

autostand)

56.66 dB

(District hospital)

Ashtami (21.10.2015)

80.20 dB (Kulai Bazar)

57.99 dB (District Hospital)

73.58 dB (Kulai Bazar)

54.84 dB (District hospital)

Nabami

(22.10.2015)

92.43 dB

(Ambassa Market

autostand)

58.28 dB

(Jawaharnagar

office complex)

78.02 dB

(Ambassa market

autostand)

55.50 dB

(Jawaharnagar office

complex)

Kumarghat

Saptami

(20.10.2015)

85.18 dB

(Near Kumarghat

Cooperative bank)

64.91 dB

(Near Kumarghat

Police station)

80.45 dB

(Near Kumarghat

Cooperative bank)

67.87 dB

(Near Kumarghat Police

station)

Ashtami

(21.10.2015)

85.82 dB

(Kumarghat

motor stand)

66.91 dB

(Near Kumarghat

Hospital)

82.07 dB

(Near Kumarghat

Cooperative bank)

70.88 dB

(Near Kumarghat

Hospital)

Nabami (22.10.2015)

86.05 dB (Near Kumarghat

Cooperative bank)


Hospital)


Cooperative bank)


Hospital)

From the above data, it has been revealed that the maximum noise level of Agartala was

at Bodhjung Chowmuhani (85.27 dB) at Day Time and at Bordowali (94.79 dB) at Night


Time on Astami Puja during the Durga Puja Festival. The high noise are due to

vehicular movement, playing of sound system & mike etc. The minimum noise level of

Agartala was at New Capital Complex Quarter (46.77 dB) at Day Time and at New

Capital Complex Quarter (36.52 dB) at Night Time on Nabomi Puja during the Durga

Puja Festival.

The maximum noise level of Udaipur was at Dhajanagar (74.56 dB) at Day Time and at

Brahma Bari (70.29 dB) at Night Time on Saptami Puja during. The high noise are due

to vehicular movement, playing of sound system & public gathering etc. The minimum

noise level of Udaipur was at Matabari (48.22 dB) at Day Time and at Matabari (44.45

dB) at Night Time on Astami Puja.

The maximum noise level of Ambassa was at Ambassa Market autostand (92.43 dB) at

Day Time and at Ambassa Market autostand (78.02 dB) at Night Time on Nabami Puja

during the Durga Puja Festival. The minimum noise level of Ambassa was at District

Hospital (57.99 dB) at Day Time on Astami Puja and at District Hospital (54.84 dB) at

Night Time during the Astami Durga Puja.

The maximum noise level of Kumarghat was at Kumarghat Cooperative Bank (86.05

dB) at Day Time on Nabami Puja and near Kumarghat Cooperative Bank (82.07 dB) at

Night Time on Astami Puja. The minimum noise level was near Kumarghat Hospital

(61.88 dB) at Day Time on Nabami Puja and also near Kumarghat Hospital (61.10 dB)

at Night Time on Nabami Puja.

B) Water Quality Monitoring:

It is observed from the result Table of 29, 30 and 31 that the average values of

Chromium, Lead and Cadmium for all the water samples collected during idol

immersion were slightly higher compared to the prescribed standards of BIS (Bureau of

Indian Standards). Moreover the value of Lead, Chromium and Cadmium comes again

into a normal value just after one week of immersion. The Value of Biochemical Oxygen

Demand (BOD) collected during immersion and after the immersion was relatively

higher than the water samples collected before the immersion. This slight increase of

BOD may be due to throwing of flowers, banana leaves and other related puja materials

into the water of idol of immersion area.


11. Conclusion:

From the present study it was observed that the noise level at New Capital

Complex Quarter of Agartala (36.52 dB) at night time on Nabami day and at

Matabari of Udaipur (48.22 dB) at day time on Ashtami day were within the

prescribed standard limits. The Noise Levels in all the other locations were

insignificantly higher than the standard level both at Day time and Night time.

This is mainly because of playing of mikes & sound boxes in different puja

pandles, beating of drums, vehicular noise, public gathering and other relative

influences.

The value of Lead, Chromium, Cadmium and other parameters for the water

samples of the Haora River at Dashamighat collected before and after the

immersion of idols were within the prescribed standard limits. However, these

values were slightly above the standard values during the period of immersion.

The BOD value for the water samples collected after the immersion were slightly

higher than the prescribed standard limits. The other parameters including heavy

metals were within the prescribed standard limits.

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