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

The Coachella Valley is expected to have unhealthy air quality over the weekend as smoke and ash from several ongoing ...

Learn what the air quality index (AQI) means, how it impacts your health, and how to stay safe when pollution is high.

On Wednesday at 3:18 p.m. an updated air quality alert was issued valid until Thursday at 6 p.m. The alert is for Ventura ...

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

Dust and ash left behind from the wildfires across Southern California can be irritating and hazardous when inhaled.

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

Air pollution is affecting cities across Laos, with PM 2.5 fine particles reaching unhealthy levels, according to a report ...

Dhaka, the overcrowded capital city of Bangladesh, has topped the list of cities with the worst air quality with an AQI index of 257 at 9:31am today (25 January). The air was classified as 'very ...

As firefighters continue to battle the rapidly-growing Border 2 fire, a smoke advisory is in effect for the southwestern area ...

The areas surrounding the wildfire, including the San Gabriel Mountains, the 5 Freeway corridor near Castaic Lake and Santa Clarita, are expected to be the most impacted by the Hughes fire, which ...

A person points at the Kaohsiung skyline enveloped in smog yesterday. The Ministry of Environment warned that air quality was unhealthy for all groups across southern Taiwan yesterday. It is to ...