National Ambient Air Quality Standards India | NAAQS

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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.

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

Reference: www.cpcb.nic.in/National_Ambient_Air_Quality_Standards