Kolkata Unhealthy
Kolkata, West Bengal
Updated: Feb 21, 2025, 9:00 PM
Some members of the general public may experience health effects; members of sensitive groups may experience more serious health effects.
Current Weather
Pollutant Breakdown
Dominant pollutant: PM25
PM2.5 Forecast (next 7 days)
Health Guidance
Data from: World Meteorological Organization - surface synoptic observations (WMO-SYNOP), U.S. Embassy and Consulates' Air Quality Monitor in India, World Air Quality Index Project
Is the air safe in Kolkata today?
The current Air Quality Index (AQI) in Kolkata is 172, which is classified as "Unhealthy". Some members of the general public may experience health effects; members of sensitive groups may experience more serious health effects.
The AQI scale runs from 0 to 500. Values of 0–50 are Good, 51–100 are Moderate, 101–150 are Unhealthy for Sensitive Groups, 151–200 are Unhealthy, 201–300 are Very Unhealthy, and 301–500 are Hazardous.
Air quality in Kolkata, West Bengal is monitored by local environmental agencies and reported through the World Air Quality Index project. Data is updated hourly and includes PM2.5, PM10, ozone, nitrogen dioxide, sulfur dioxide, and carbon monoxide.