ENVIS Centre, Ministry of Environment & Forest, Govt. of India

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Minimal Pollution during Deepawali 2020

No to Firecrackers

Minimal Pollution during Deepawali 2020

 

Source: SPCB Sikkim

 

The State Pollution Control Board (SPCB), Sikkim carried out a special monitoring of Ambient Air Quality  and Noise pollution during Deepawali festival at two locations in the state capital viz.  Deorali, Forest Secretariat  and M.G. Marg (Titanic Park) in Gangtok, EastSikkim for a period of 15 days between 7th of November, 2020 to 21st of November, 2020 to assess the level of pollution in three phases i.e pre-Deepawali, Deepawali and post-Deepawali.

 

As per the data generated during the monitoring programme, it was found that the level of ambient air pollution was quite low and largely remained unaffected during the Deepawali festival. The figures were well within the Air Quality Standard notified by the Central Government. Accordingly, the AQI was between Good and Satisfactory. However, in case of noise pollution, it was observed that the noise level exceeded the prescribed limit during night time on the day of Deepawali which may be attributed to vechular movement, street noise mainly from people visiting markets, firecrackers.

 

The SPCB Sikkim had further brought out Appeal in the Newspaper soliciting cooperation from general public to prevent all form of pollution including Noise Pollution. Also, Holdings and Pamplets were also distributed throughout the state for generating awareness on the matter.

 

 

The findings of the monitoring are as follows:

 

NAME OF LOCATION:DEORALI (FOREST SECRETARIAT),GANGTOK

 

 

 

PARAMETERS MONITORED(Average value)

DATE

SO2

(µg/m³)

National Standard

 

NO2

(µg/m³)

National Standard

 

PM10

(µg/m³)

National Standard

 

 

PM2.5

(µg/m³)

National Standard

 

 

Air Quality Index

PRE-DEEPAWALI

7th to 13th Nov. 2020

7.30

 

 

 

 

80

16.80

 

 

 

 

80

34.38

 

 

 

 

100

20.78

 

 

 

 

60

Between (47 and 29) (GOOD)

DAY OF DEEPAWALI

14th Nov. 2020

10.60

13.69

36.37

33.52

56(Satisfactory)

POST DEEPAWALI

15th to 21st Nov. 2020

7.40

14.74

38.03

26.88

Between(57 and 53) Satisfactory

 

 

NAME OF LOCATION:  M.G MARG (TITANIC PARK),GANGTOK
 

 

PARAMETERS MONITORED(Average value)

      

             DATE

SO2

(µg/m³)

National Standard

 

 

NO2

(µg/m³)

National Standard

 

 

PM10

(µg/m³)

National Standard

 

 

PM2.5

(µg/m³)

National Standard

 

Air Quality Index

PRE-DEEPAWALI

7th to 13th Nov. 2020

6.64

 

 

 

 

80

20.76

 

 

 

 

80

51.77

 

 

 

 

100

30.63

 

 

 

 

60

Between (64 and 66) (Satisfactory)

DAY OF DEEPAWALI

14th Nov. 2020

5.20

22.64

40.86

24.46

41(Good)

POST DEEPAWALI

15th to 21st Nov. 2020

6.98

16.53

57.63

28.19

Between(61 and 63) Satisfactory

 

 


Ambient Noise monitoring at MG Marg : The noise level were monitored from 6pm till midnight at the site.

Sl.no.

Date

Noise level in dB(A) Leq

National Standard

dB(A)Leq

1.

9.11.2020

(Pre-deepawali Day)

 

60.96

65 (day)

 

55(Night)

2.

14.11.2020

(Deepawali Day)

57.39