JavaScript must be enabled in order for you to use the Site in standard view. However, it seems JavaScript is either disabled or not supported by your browser. To use standard view, enable JavaScript by changing your browser options.

| Last Updated:14/09/2020

Latest News

Archive

Air Quality Index of Sikkim

 

AMBIENT AIR QUALITY MONITORING REPORT DURING LOCKDOWN May 25- June10, 2020

 

 

The State Pollution Control Board Sikkim has been conducting ambient air quality monitoring under the National Ambient Air Monitoring Programme in eight stations in the state of Sikkim. As per the analysis conducted, the ambient air quality in the state has been well within the permissible limits as per the provisions of the Air (Prevention and Control of Pollution) Act, 1981. Despite the lockdown, monitoring of Air quality is being conducted by the Board as per directives of the CPCB. Air quality is categorized into various indices such as good, satisfactory, moderate, poor, very poor & severe. As per the comparative analysis of the data generated for the average air quality index of March, April & May 2020, the state is well within the permissible limits and improvement has been observed after the implementation of the lockdown. The restriction in vehicular movement in addition to closure of all construction activities is likely to have contributed to the decrease in air pollution levels in the 1st and 2nd phase of the lockdown. However during  the 3rd phase of lockdown in which  vehicular movement was allowed along with transportation of construction material the air pollution levels has shown a slight increase although the values are within the permissible limits. Ravangla is the only station that has shown gradual decrease in the air quality pollution index which may be due to the fact that it receives more rainfall during the South West Monsoon season.

 

 

SN

Station

March 2020

April 2020

May 2020

1.

Deorali, Gangtok, East Sikkim

60 (Satisfactory)

21 (Good)

38 (Good)

2.

Rangpo, East Sikkim

62 (Satisfactory)

38 (Good)

38 (Good)

3.

Singtam, East Sikkim

53 (Satisfactory)

32 (Good)

31 (Good)

4.

Namchi, South Sikkim

34 (Good)

10 (Good)

24 (Good)

5.

Ravangla, South Sikkim

26 (Good)

25 (Good)

15 (Good)

6.

Mangan, North Sikkim

33 (Good)

13 (Good)

20 (Good)

7.

Chungthang, North Sikkim

23 (Good)

10 (Good)

17 (Good)

8.

Pelling, West Sikkim

27 (Good)

9 (Good)

14 (Good)

 

 

National AQI Category and its associated health impacts

AQI-Standards

 

 

 

Previous 5 Months AQI of Eight Stations at Sikkim (Source: SPCB Sikkim)

 

 

 

SN

Year

Rangpo

Singtam

Gangtok

Ravangla

Namchi

Pelling

Chungthang

Mangan

1.

Sep ’19 (26/09/19)

55

48

28

27

35

9

16

24

2.

Oct ’19 (28/10/19)

NA

NA

43

26

25

26

NA

22

3.

Nov ’19 (29/11/19)

61

53

47

28

28

23

22

35

4.

Dec ’19 (12/12/19)

66

54

45

25

28

19

NA

38

5.

Jan '20 (09/01/20)

77

51

52

27

26

28

NA

18

 

 

 

 Source: State Pollution Control Board Sikkim

 

  » See More on Air Quality of Sikkim