The advisories impact large areas of Idaho, Oregon, Montana and Washington, lasting through the end of January.

The Wyoming Department of Environmental Quality (DEQ), Air Quality Division (AQD) has begun operating a mobile ambient ...

As the Hughes Fire continues to blaze near Castaic Lake, residents of Castaic and Santa Clarita find themselves grappling with deteriorating air quality.  The South Coast Air Quality Management ...

The Los Angeles County Department of Public Health is issuing a windblown dust and ash advisory following strong Santa Ana ...

A county hotline has also been established for residents to call officials with any questions about the air quality and best ...

A county hotline has also been established for residents to call officials with any questions about the air quality and best ...

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

The Davis County Health Department is showing off its new air quality monitoring system. Sound of a meteorite hitting Earth ...

A surface inversion is preventing the normal mixing of air, meaning pollutants will remain trapped at lower altitudes.

“In an abundance of caution, Monterey County Health Officials are advising residents to stay indoors, keep windows and doors closed, limit outdoor exposure, and turn off ventilation systems ... have ...