Status of Ambient Air Quality in 35 Metropolitan Cities of India

 

City Name

2008

SO2

NO2

PM10

Agra

9

10

184

Ahmedabad

12

20

80

Allahabad

8

35

128

Amritsar

15

36

-

Asansol

9

74

135

Bangalore

15

40

90

Bhopal

7

15

93

Chennai

6

9

48

Coimbatore

5

28

55

Dhanbad

19

44

131

Delhi

5

45

198

Faridabad

13

25

139

Hyderabad

6

27

87

Jaipur

6

34

112

Jabalpur

BDL

25

136

Jamshedpur

37

51

172

Indore

9

17

174

Kanpur

7

23

209

Kochi

5

19

40

Kolkata

9

58

148

Lucknow

8

35

186

Ludhiana

10

39

251

Madurai

10

23

41

Meerut

10

42

115

Mumbai

9

42

132

Nagpur

8

32

98

Nashik

30

25

80

Patna

7

39

120

Pune

22

38

99

Rajkot

10

13

89

Surat

16

23

81

Vadodara

11

21

57

Varanasi

16

19

106

Vijayawada

5

26

91

Visakhapatnam

10

31

87

Source : Data as reported by CPCB/SPCBs/PCCs/NEERI

Note:- ‘-‘ Data not available/inadequate. BDL – Below Detection Limit (i.e. less than 4 micrograms per cubicmeter for SO2 and less than 9 micrograms per cubicmeter for NO2). Data of Agra is of Taj Mahal is of sensitive Area. Data as reported in monthly summary sheet\Environmental Data Bank available as on date. * - Data is inadequate for annual average. Data for 2009 is average of data available as on date. National Ambient Air Quality Standard for Residential Industrial and other Areas (Annual average) for SO2 = 50 microgramme per cubic metre, NO2 = 40 microgramme per cubic metre and PM­10 = 60 microgramme per cubic metre.  (Concentrations in Microgramme per Cubic Metre)