Question

On how many pollutants national air quality index is based

Answer 1

hey!!
there r 8 pollutants on which national air quality index is based
mainly pollutants are N2,O3,So2,NH3,pb

hope it helps u

Answer 2

National Air Quality Index was lauched by the Prime Minister in April 2015 starting with 14 cities to disseminate air quality information.

The AQI has mainly 6 categories of air quality

1. Good
2. Satisfactory
3. Moderately Polluted
4. Poor
5. Very Poor
6. Severe

Distinct color scheme. Each of these categories is associated with likely health impacts.

AQI considers eight pollutants (PM₁₀ , PM₂.₅ , NO₂ , SO₂ , CO , O₃ , NH₃ amd Pb) for which ( upto 24 - hourly averaging period) National Ambident Air Quality Standards are prescribed.