Connecting to live data…
Stations monitored
600+
Data source
CPCB Live
Updated every
15 min
Live AQI
The National Air Quality Index (AQI) for India was developed by CPCB and officially launched in 2014. It converts ambient concentrations of up to eight pollutants into a single dimensionless index on a 0–500 scale with six colour-coded categories, making air quality information easy to communicate to the public.
The full CPCB AQI standard covers eight pollutants: PM2.5, PM10, NO₂, SO₂, CO, O₃, NH₃, and Pb (lead). This application computes sub-indices for the four pollutants most widely measured across CPCB's automated monitoring network. An AQI is reported only when at least one valid pollutant reading is available.
Concentration averages used: PM2.5 and PM10 — 24-hour rolling average; NO₂ and SO₂ — 24-hour average; CO — 8-hour; O₃ — 8-hour; NH₃ — 24-hour.
Data source: CPCB Continuous Ambient Air Quality Monitoring Stations (CAAQMS) via OAQ India. Readings are typically 15-minute averages.