Chengalpattu Air Quality Index
Chengalpattu, India · Real-time AQI data
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About Air Quality in Chengalpattu
The Air Quality Index (AQI) in Chengalpattu is measured using monitoring stations that track six key pollutants: PM2.5, PM10, ground-level ozone, nitrogen dioxide, sulfur dioxide, and carbon monoxide. The AQI is calculated using US EPA standards and ranges from 0 (excellent) to 500 (hazardous).
PM2.5 is typically the dominant pollutant in Chengalpattu during high-pollution periods. Fine particulate matter from traffic, industry, and seasonal factors can push AQI above 150, which is considered unhealthy for all groups.
Check the health effects guide to understand what today's AQI means for your activity level, or see the global AQI rankings to compare Chengalpattu with other cities worldwide.