A new law tightens building and emissions regulations for large distribution warehouses to mitigate air pollution and traffic in surrounding communities.

At 7:50 a.m. on Thursday, the NWS Phoenix AZ reported an air quality alert in effect until Saturday at midnight. The alert is for Imperial County Southwest, Imperial County West and Imperial Valley.

A new study shows the switch resulted in a dramatic drop in toxic air pollutants on board trains and around major transit ...

Switching from diesel to electric trains dramatically improved the air quality aboard the San Francisco Bay Area's Caltrain commuter rail line, reducing riders' exposure to the carcinogen black carbon ...

The Los Angeles County Department of Public Health has launched an interactive online dashboard that provides the public with ...

The plan brings together government agencies, manufacturers, retailers, utilities, and other partners to tackle a critical ...

Cities in California, Texas and Arizona are expecting air quality to become unhealthy for sensitive groups on Thursday.

Compared with deep-fat fryers, air fryers are a more healthy way to cook as they use hot air and less cooking oil – or sometimes no oil at all. Instead, air fryers blast hot air around a small cooking ...

We all know outdoor pollution is a problem, but the chances are you're not too worried about the quality of air in your home ... pollution levels on this interactive pollution forecast map, maintained ...

Air-quality officials are advising people in several Southern California cities to keep their doors and windows closed amid ...

March 31, 2025 • In Pasadena, The Gamble House was in a fire evacuation zone and its custodians are trying to safeguard its future. In Altadena, only concrete walls are left from the former home ...