Patna Air Quality Index (AQI) Today
Live AQI, PM2.5 and PM10 levels for Patna, Bihar. Updated hourly.
About air quality in Patna
This page tracks live PM2.5, PM10, ozone, nitrogen dioxide and the US and Indian (CPCB NAQI) air quality indexes for Patna, Bihar, India. Pollution levels typically rise in winter when cold, still air traps emissions near the ground, and improve during the monsoon.
Values are modelled estimates (CAMS via Open-Meteo, ~10 km grid) and are refreshed hourly. See our methodology.
Frequently Asked Questions about Patna Air Quality
Essential health, medical, and lifestyle advice for residents
The Air Quality Index (AQI) translates complex pollutant measurements (PM2.5, PM10, Ozone, NO2) into a standard 0 to 500 scale. Numbers between 0-50 indicate clean air, 51-100 acceptable moderate air, 101-150 unhealthy for sensitive groups (asthma/children/elderly), and anything above 150 is unhealthy for all individuals.