Environment Canada’s air quality health index for the GTA dipped to moderate on Wednesday night with low-risk levels forecast ...

The Oregon Department of Environmental Quality issued an air quality advisory for Wednesday for Klamath and Jefferson ...

Air quality in the Chicago area has remained poor for three days in a row, the NBC 5 Storm Team reported Wednesday morning.

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Impacted areas include Ulster, Dutchess, Orange, Putnam, Sullivan, Rockland, Westchester, Suffolk, and Nassau Counties, as well as New York City.

Canadian wildfire smoke remains in Michigan. On July 16, officials issued an air quality advisory for western counties.

Tuesday’s air quality warning has dropped to a 5, considered a moderate risk, down from Monday’s peak of 10+ on the Air Quality Health Index’s 10-point scale.

Air quality in the Chicago area remains poor for the third straight day in a row, with an air quality alert in effect through Wednesday night, along with extremely muggy conditions and the chance for ...

In Canada, the Air Quality Health Index (AQHI) is a scale developed to help people understand what the current air quality means for your health. It is an initiative among Environment Canada, Health ...

With wildfire smoke in the forecast, track the drop in air quality across dozens of PurpleAir sensors with our live, updating ...

The Illinois EPA declared an Air Pollution Action Day in the Chicago metro area. See today's air quality index forecast for Illinois.

An air quality alert was in effect for the Chicago area and northwest Indiana Tuesday as poor air quality from unhealthy, ...