The Orange County and Santa Ana Mountains area is the focus of an air quality alert reported at 11:54 a.m. on Friday by the ...

Since the days of big steel, Pittsburgh's air quality has ranked among the worst in the country. However, a new report ...

The fire produced smoky conditions in Freehold Borough on Thursday, but conditions appeared to be improving by morning.

At 12:45 p.m. on Friday, the NWS Los Angeles/Oxnard CA reported an air quality alert in effect until Sunday at midnight. The ...

An air quality alert was reported by the NWS Los Angeles/Oxnard CA on Monday at 11:19 a.m. in effect until Wednesday at ...

The Orange County and Santa Ana Mountains area is included in an air quality alert reported by the National Weather Service ...

An air quality alert is in effect through Sunday night for several counties in central Pa., which means there will be an ...

Los Angeles County is under an air quality alert which was reported by the National Weather Service on Saturday at 12:22 p.m.

The Commission for Air Quality Management on Saturday invoked stricter GRAP Stage-III restrictions, including shifting ...

Commission for Air Quality Management enforces GRAP Stage-III in Delhi-NCR, shifting schools to hybrid mode and restricting ...

Thick layers of smog once again cover Delhi, with many parts of the city reporting poor visibility and breathing discomfort.

A London City Hall committee has warned that Heathrow Airport's expansion plans would undermine progress made to the ...