This is the newest model of Amazon’s smart air quality monitor, a petite gadget that many reviewers claim has offered ...

The air has improved in the LA region as firefighters get blazes under control, but there are questions about how safe the ...

The EPA measures regional air quality index (AQI) by how hazardous it is to the general public. Discover the AQI in your city by searching below.

Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily ...

A new grassroots effort just started tracking pollution in. Learn more, including how you can get involved, here.

An air quality alert is in effect Wednesday due to the fine particle pollution from wildfire smoke. The alert impacts Santa ...

Wildfires are tearing through thousands of acres in Los Angeles County in California, as strong Santa Ana winds stoke the ...

Click here to use the Chronicle’s live air-quality tracker. Newsroom meteorologist Anthony Edwards contributed reporting for this story. Reach Susie Neilson: Susan.Neilson@sfchronicle.com ...

DAVIS COUNTY — Davis County residents have access to more accurate air quality data thanks to the installation of 24 air ...

As Southern California winds contribute to the spread of a major wildfire, map tools from NASA and Esri help first responders ...

As thousands of acres burn across Southern California, wildfire smoke is causing poor air quality in the region and beyond.