Major fires continue to burn in Arizona and across Canada, impacting the air quality for millions of people. An air purifier can help, but it depends on the filter.

Parks Canada has issued a wildfire emergency advisory alert for Prince Albert National Park. A wildfire is about 40 ...

The Vermont Department of Environmental Conservation has issued an air quality alert for Tuesday. The alert has been issued ...

Letter to Canada signed by Minnesota congresspeople one more example of how crass and shallow we've become, even in moments ...

A heat wave combined with wildfire smoke is hitting the city. But a health expert warns one is worse than the other.

An air quality health advisory has been issued for Tuesday across Central New York, including Livingston County.