For children already diagnosed with asthma, air pollution is a known irritant and trigger for symptoms such as wheezing, ...

Smog from wildfires sweeping the nation has left tens of millions more Americans to breathe toxic air even as man-made forms of pollution fall, according to a new study released Wednesday.

A new study from Milan reveals that short-term exposure to air pollutants like black carbon and VOCs significantly alters the ...

In a sweeping new study of more than 13,000 urban areas worldwide, researchers have mapped air pollution levels and carbon dioxide emissions, providing comprehensive global analysis of urban ...

Los Angeles has struggled with air pollution problems since before smog became a term. In 1943, smog covered the city so thickly that residents thought they were under a chemical attack.

Colorado has consistently failed to meet federal standards for ground-level ozone across the Front Range where 3.3 million ...

When it comes to the Bay Area’s air quality report card, there’s little to smile about. The grades show failure across the ...

In a sweeping new study of more than 13,000 urban areas worldwide, researchers have mapped air pollution levels and carbon dioxide emissions, providing comprehensive global analysis of urban ...