The air quality index measures PM2.5, less than 2.5 microns particles, to determine the intensity of air pollution in cities.

Public comments on a proposed state rule aimed at improving air quality in Fairbanks and North Pole close Friday, leaving ...

If conditions and weather allow, the Tahoe Fire & Fuels Team (TFFT) will continue prescribed burning this week around Lake Tahoe. North Lake Tahoe and Tahoe Douglas fire protection districts and the ...

Contra Costa County officials have lifted a shelter-in-place order that was placed after a fire erupted Saturday at the ...

A variety of new technologies aim to improve wildfire detection and help map the spread of blazes Embers from the Eaton Fire ...

The TFFT strongly supports the use of prescribed fire under appropriate conditions and works closely with air quality ...

Even though the Palisades and Eaton fires are now mostly contained, the Santa Ana winds have led to new fires flaring up ...

The San Diego County Air Pollution Control District canceled the smoke advisory on Saturday morning for San Diego County as air quality improved in the area. They had previously issued an active ...

Crews worked overnight to contain a wildfire that has burned thousands of acres and forced expanded evacuation orders and warnings north of the U.S.-Mexico border in San Diego County. The blaze, ...