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8 practical guides

Clean Air

Everything about air quality in India — AQI explained simply, PM2.5 and PM10, indoor air quality, air purifier guides and city-wise pollution information.

The AQI scale, at a glance

0–50
51–100
101–200
201–300
301–400
401–500
500
Good
Little risk; air is clean.
Satisfactory
Minor breathing discomfort for sensitive people.
Moderate
Discomfort for people with asthma or heart disease.
Poor
Breathing discomfort for most on prolonged exposure.
Very Poor
Respiratory illness on prolonged exposure.
Severe
Affects healthy people; serious risk for all.

India's National Air Quality Index (CPCB) reports the worst of eight monitored pollutants on a 0–500 scale.