National Ambient Air Quality Standards India | NAAQS
National Ambient Air Quality Standard - India
As per Prevention and control of air pollution act, 1981, Central Pollution Control Board limits the maximum concentration of primary pollutants in industrial, Residential, Rural areas and in Ecologically sensitive areas as below.
Reference: www.cpcb.nic.in/National_Ambient_Air_Quality_Standards
S.No.
Pollutant
Time Weighted Average
Industrial, Residential & Rural Areas (g / M3)
EcologicallySensitive areas,(g / M3)
1.
Sulphur Dioxide (SO2)
Annual
50
20
2.
Nitrogen Dioxide (NO2)
Annual
40
30
3.
Particulate Matter, (PM10)
Annual
60
60
4.
Particulate Matter, (PM2.5)
Annual
40
40
5.
Ozone (O3)
8 Hours
100
100
6.
Lead (Pb)
Annual
0.5
0.5
7.
Carbon Monoxide (CO)
8 Hours
02
02
8.
Ammonia (NH3)
Annual
100
100
9.
Benzene (C6H6)
Annual
05
05
10.
Benzo Pyrene (BaP) (Particulate form only)
Annual
01
01
11.
Arsenic (As)
Annual
06
06
12.
Nickel (Ni)
Annual
20
20