This winter warm-up was an odd one because it came without much wind. It was nearly calm over the last day. Typically, a big winter warm-up is blown in on a strong southwest wind, which doesn’t allow ...

Air Quality Numbers Explained: As pollution in Delhi continues to rise without pause, residents are constantly checking the AQI levels to decide when it might be safe to step outdoors. Air Quality ...

Canadian wildfire smoke is affecting air quality in parts of Michigan. The EPA's air quality index (AQI) uses a color-coded scale to inform the public about air quality and associated health risks.

The Air Quality Index (AQI) uses a color-coded scale to inform the public about air pollution levels and potential health risks. Michigan residents can check the AQI through various online resources, ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. The U.S. Air Quality Index (AQI) is the ...

New York City and some of the surrounding area are under an air quality alert Wednesday. The alert will be in effect from 11 a.m. to 11 p.m. New York officials say the alert will impact the city, ...