Wildfire season is upon us once again, and smoke is reducing air quality through swaths of the country. Environment Canada ...

The Chicago area recorded ozone levels of 156 late Monday afternoon. Levels above 100 are considered unhealthy. Residents ...

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The Air Quality Health Index is expected to be as high as seven, or high risk, according to Environment Canada.

Wildfire season is upon us, and smoke is reducing air quality through swaths of the country. Environment Canada suggests ...

Additional plumes of smoke from Canada's active wildfires prompt officials to issue a statewide air quality alert on July 14.

Dhaka, the overcrowded capital city of Bangladesh, has ranked 15th on the list of cities with the worst air quality, with an ...

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Canadian wildfire smoke will impact all of Wisconsin throughout the weekend. The air quality index is expected to reach the ...

Risk designations can change regularly in the same community, Environment Canada says, so it's important to keep checking the air quality forecast.

The DEC has issued an air quality health advisory for most of upstate New York due to elevated levels of fine particulate ...

Air quality across Minnesota was pretty bad this past weekend. It was so bad that it was ranked as some of the worst in the ...