The National Weather Service reported an air quality alert at 7:28 a.m. on Thursday in effect until 7 p.m. for Dixon and Dakota counties.

An air quality alert was reported by the NWS San Diego CA on Thursday at 12:22 p.m. in effect until Saturday at midnight for ...

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 health alert has been issued for the Coachella Valley due to dangerous dust pollution just before the music festival's second weekend.

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

Instead of featuring regional drought models or precipitation trends, the website for the center tells users that its funding ...

Google has been branded an abusive monopolist by a federal judge for the second time in less than a year, this time for ...

The study estimates that this reduction in black carbon will significantly lower cancer risk for people regularly exposed to ...