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Year

PACL

   SPM

 SO2

NOx

2001

144

04

17

2002

132

06

17

2003

136

06

18

2004

153

07

25

2005

180

09

22

2006

256

08

28

2007

94

26

09

Units : µg/m3


Source: Punjab Pollution Control Board , Patiala