Public health officials often recommend limiting time spent outside when AQI levels rise, especially for high-risk demographics. Air quality was so poor in parts of Southern California on Friday ...

Eduardo Cuevas, John Bacon, Michelle Maltais, USA TODAY This article originally appeared on USA TODAY: Los Angeles air quality and smoke maps: See latest AQI numbers in Southern California ...

When a horrific firestorm enveloped Southern California in January, it affected everyone who calls the region home. Even those far from the burn areas had their lives transformed during the event and ...

A spokesperson for the South Coast Air Quality Management District in California told Newsweek: "We expect the highest AQI in the afternoon, and lower AQI before noon and after sunset. Ozone forms ...

That’s worse than the last two yearly reports, which Chicago ranked 17th. California dominated this year’s list, with 9 of the 25 most polluted cities. Los Angeles ranked first for most polluted by ...

Residents across New York and New Jersey are dealing with poorer air quality than usual, but a new report revealed that even ...