CPCB ( Central Pollution Board Control) a Govt body specify following limits for industrial area. They have also specified of other residential areas and sensitive area also .However other areas are not our point of discussion except industrial area.
AMBIENT AIR QUALITY.
Type of measurement has also been specified but that is beyond our discussion.
AMBIENT AIR QUALITY.
Pollutant
|
Time weighted average
|
Indl. Area
(g/m3)
|
Res. Rural Other areas
(g/m3)
|
Sensitive Area
(g/m3)
|
|||||
Sulphur Dioxide
(SO2)
|
* Annual
average
** 24 hours
|
80
120
|
60
80
|
15
30
|
|||||
Oxides of Nitrogen
|
* Annual Average
** 24 hour
|
80
120
|
60
80
|
15
30
|
|||||
Suspended Particulate Matter (SPM)
|
* Annual Average
** 24 hour
|
360
500
|
140
200
|
70
100
|
|||||
Resperiable Particulate.
|
Annual Average
** 24 hours
|
120
150
|
60
100
|
50
75
|
|||||
Lead (Pb)
|
Annual Average
** 24 hours
|
1.0
1.5
|
0.75
1.0
|
0.50
0.75
|
Carbon monooxide (CO)
|
** 8 hour
1 hour
|
5000.0
10000.0
|
2000.0
4000.0
|
1.0
2.0
|
Type of measurement has also been specified but that is beyond our discussion.
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