Status of Ambient Air Quality in 35 Metropolitan Cities of India

 

City Name

2007

SO2

NO2

PM10

Agra

6

23

167

Ahmedabad

12

20

86

Allahabad

20*

40*

159*

Amritsar

14

33

-

Asansol

7

57

112

Bangalore

17

39

63

Bhopal

11

19

84

Chennai

9

BDL

37

Coimbatore

7

27

45

Dhanbad

20

52

107

Delhi

BDL

36

159

Faridabad

12

25

146

Hyderabad

5

24

77

Jaipur

5

29

98

Jabalpur

BDL

24

107

Jamshedpur

38

52

166

Indore

8

16

108

Kanpur

7

24

193

Kochi

6

BDL

46

Kolkata

8

58

99

Lucknow

9

32

187

Ludhiana

10

36

201

Madurai

9

21

43

Meerut

11

44

120

Mumbai

11

40

92

Nagpur

7

25

99

Nashik

43

35

45

Patna

10

50

123

Pune

20

45

109

Rajkot

12

17

76

Surat

17

26

87

Vadodara

10

19

83

Varanasi

16

19

114

Vijayawada

6

36

85

Visakhapatnam

9

31

95

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)