The index rates how clean or polluted the air is each day. The EPA uses this measure to keep tabs on five kinds of air pollutants. The main concern from the wildfire smoke is fine particle pollution, ...

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Dallas-Fort Worth residents should be prepared to take precautions and monitor air quality alerts during Ozone season.

Firefighters work inside a burned structure. After California’s Eaton fire was suppressed in January, invisible gases continued to permeate the air, exposing residents and first responders to ...

A new report on air quality across the United States offered a cloudy prognosis on the long-term health of about 156 million residents who live in areas that received an "F" in smog and soot pollution ...

Air quality in Los Angeles has improved as the Palisades and Eaton wildfires get under control. But as the fires burned through houses, cars and industrial areas, they spewed out vast amounts of smoke ...

The National Weather Service issued an air quality alert for southeast Wisconsin June 3. Wind and sunlight are trapping extra ozone on ground levels.

Smoke from wildfires raging in Canada has drifted into the United States, affecting air quality as far south as Florida and creating a "very unhealthy" situation in parts of Minnesota on June 3, ...

Air quality in the Chicago area Wednesday and even into Thursday was expected to be at unhealthy levels, the National Weather ...

The New York State Department of Environmental Conservation has issued an Air Quality Health Advisory for parts of downstate New York on Friday because of elevated ozone levels. The advisory is in ...