An Air Quality Alert is in effect for King and Snohomish counties until noon Wednesday. An alert is also in place for Chelan, ...

Santa Clara Valley and the East Bay are expected to see the worst ozone pollution as inland cities near 100 degrees.

MORPC uses the national AQI scale, which ranges from 0 to 500, to inform the public about daily ozone and particle pollution levels in Central Ohio. An AQI above 100 indicates that air quality is ...

SPOKANE, Wash. — It's another hot day across the Inland Northwest, and with it comes worsening air quality across the region. According to the Spokane Regional Clean Air Agency, the current air ...

EVACUATION ZONE. THE SEPTEMBER LIGHTNING COMPLEX, ALSO IMPACTING AIR QUALITY IN THE MOTHERLODE KCRA 3 METEOROLOGIST OPHELIA YOUNG. JOINING US NOW WITH THE LATEST ON THIS. AND OPHELIA, WE KNOW THAT AS ...

National parks are issuing warnings and closing some trails due to air quality. Air quality in Seattle and much of the metropolitan area was good to moderate on the Air Quality Index for most of ...

SPOKANE, Wash. – Spokane’s air quality is forecasted to fall from moderate to unhealthy on the Air Quality Index due to smoke from wildfires, according to the Spokane Regional Clean Air Agency. The ...

KITTITAS COUNTY, Wash. — People in Kittitas and Yakima counties are being warned of potentially unhealthy air quality due to wildfire smoke. An Air Quality Alert issued by the National Weather Service ...

DENVER — A cold front moved through Colorado late Thursday, bringing cooler temperatures along with thick wildfire smoke and haze. The most noticeable cold front impact was the wildfire smoke that ...

Wildfires and heat brought Spokane County a grungy haze this week and triggered an air quality alert. The Spokane Regional Clean Air Agency’s air quality index will range from unhealthy for sensitive ...

COLVILLE, Wash - High temperatures and smoky air have put air quality into the unhealthy range for parts of Stevens County. The Washington Department of Ecology issued an air quality alert for much of ...