Track and cross-country runners at Utah's universities say they notice bad-air days along the Wasatch Front — and sometimes ...

Those groups particularly sensitive to particulate matter in the air may want to limit time outside Friday and Saturday.

Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...

If you have been hearing about poor air quality in New York City Friday, you can breathe a deep sigh of relief (literally): ...

A fire at the Owl Metals recycling facility that caused the Peninsula Expressway to shut down is still causing an air quality ...

One possible reason for bad air quality in the city is a fire that broke out yesterday afternoon in Lancaster, Pennsylvania, ...

Certain factors impact how long it takes for you to cross that finish line, but what about the air quality? Recently, ...

An air quality alert was issued on Wednesday at 4:14 p.m. in effect until Thursday at 6 p.m. The alert is for San Bernardino ...

On Monday at 11:45 p.m. an air quality alert was issued valid until Tuesday at 10 p.m. The alert is for Calabasas and Agoura ...

Air quality in wildfire-stricken Los Angeles improved on Thursday from hazardous peaks hit earlier this month, as tiny soot ...

Dust and ash left behind from the January wildfires in Los Angeles County can be irritating and hazardous to health when it’s ...

New Delhi: After two days of moderate air quality, the air quality in the national capital has again deteriorated, falling ...