The Bay Area Air District has issued an air quality advisory in the region for Tuesday because of smoke from a wildfire in ...

Ozone pollution in Portland, Gresham and other cities could reach unhealthy levels for sensitive groups Tuesday afternoon.

An air quality advisory has been issued for the Bay Area amid concerns about wildfire smoke drifting into the region.

Here's why the Canadian wildfire smoke is returning to the state and what to know about the latest air quality advisory.

The Air Quality Advisory issued by the Department of Environmental Protection is not the result of wildfire smoke, as it was ...

The Oregon Department of Environmental Quality has issued an air quality advisory for the greater Portland region through ...

Smoke from the Gifford Fire in Santa Barbara County has drifted east in the Victor Valley and High Desert region, prompting ...

An air quality advisory is in effect for New York City as smoke from Canadian wildfires continues to impact the region’s air, ...

Michigan's environmental agency has extended an air quality advisory through Saturday because of smoke from Canadian ...