The Air Quality Index (AQI) uses a color-coded scale to inform the public about air pollution levels and potential health ...

Delhi-NCR reimposes Stage-I GRAP measures as the Air Quality Index (AQI) deteriorates, reaching the 'Poor' category at 209.

MORPC issues Air Quality Alert for Columbus due to wildfire smoke. AQI “Unhealthy for Sensitive Groups.” Limit outdoor ...

Canadian wildfire smoke lingers over the Greater Lansing area on June 6. The entire Lower Peninsula is under an air quality ...

Air Quality Alert in Western NY; limit outdoor activities due to high Fine Particulates predicted to exceed AQI 100.

An air quality alert remains in effect for the entire Chicago area, with another "Air Pollution Action Day" alert declared as ...

The U.S. Air Quality Index (AQI) is the Environmental Protection Agency’s tool for reporting outdoor air quality and health.

As wildfires continue to rage in western Canada, the Environmental Protection Agency issued its first alert of the year for ...

An air quality alert has been issued for much of the Chicago area Wednesday afternoon as Canadian wildfire smoke once again ...

A pulmonologist recommends limiting outdoor exposure to minutes when AQI exceeds 150, and notes smoky conditions from ...

Another air quality alert has been issued for the NYC area today, and it has expanded to include Long Island and New Jersey.

As Canadian wildfires burn, Greater Lansing is seeing smoke, haze. On June 5, most of the Lower Peninsula is under an air quality advisory or alert.