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Permissible Limits :-

 

Parameter

 

Time Weighted Average

 

Concentration in Ambient Air

 

Commercial, Residential Areas

 

Sensitive Areas

 

RSPM (µg/m3)

 

24 Hours

 

100

 

100

 

SO2 g/m3)

 

    24 Hours

 

80

 

80

 

NOx g/m3)

 

    24 Hours

 

80

 

80

 





Source: Punjab Pollution Control Board, 2015