At 8:26 a.m. on Friday, the NWS Phoenix AZ reported an air quality alert in effect until Sunday at noon. The alert is for ...

State and local authority over air quality will be jeopardized if Congress revokes California’s auto emissions limits, ...

There are 25 million more people living with bad air than last year's report showed, according to air quality data from the ...

On Tuesday at 7:30 a.m. an air quality alert was reported by the NWS Phoenix AZ in effect until Thursday at 11 a.m. The alert ...

California Air Resources Board said it would repeal its Advanced Clean Fleets rule, which required certain trucking fleets in the state to transition to zero-emission vehicles beginning last year.

Children and other sensitive groups are being urged to remain indoors today across parts of southern California, Oregon and Arizona, where air quality was reported as "unhealthy for sensitive groups" ...

Here's what you can and can't pack in your carry-on and checked luggage, according to the TSA's official list. The Canadian ...

Read more on our AI policy here. On Tuesday at 7:30 a.m. an air quality alert was reported by the NWS Phoenix AZ in effect until Thursday at 11 a.m. The alert is for Imperial County Southwest ...