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(1997-2001)

Year

 

PCPL

Agro Chemical

   SPM

 SO2

NOx

 SPM

 SO2

 NOx

1997

223

12

18

233

23

33

1998

198

13

53

197

25

32

1999

327

17

34

315

16

29

2000

320

12

30

320

12

27

2001

371

11

33

371*

10*

32*

 

 

 

 

 

 

 

2001-2007)

Year

 

PCPL

Wisdom Yarn

SPM

SO2

NOx

SPM

SO2

NOx

2001

371

11

33

371

11

32

2002

305

09

32

294

09

31

2003

288

11

36

282

10

36

2004

314

09

38

287

09

38

2005

270

09

27

269

09

28

2006

231

10

30

242

10

29

2007

233

12

31

228

12

30

Units : µg/m3

* Revised

Source: Punjab Pollution Control Board , Patiala