Erin Davis/Axios Visuals Air quality is worsening in the Upper Midwest and Northern California, according to year-over-year data. Why it matters: Poor air quality can lead to long-term health problems ...

On Wednesday at 3:18 p.m. an updated air quality alert was issued valid until Thursday at 6 p.m. The alert is for Ventura ...

LFC chair Sen. George Muñoz wrote that a request to increase the Air Quality Bureau's budget by 31% may violate state rules.

The Center for Biological Diversity and the Patagonia Area Resource Alliance say federal regulators failed to review a ...

Dust and ash left behind from the January wildfires in Los Angeles County can be irritating and hazardous to health when it’s ...

The Air Quality Index measured 156 near Forks, Washington, and received a rating of "unhealthy," meaning some members of the ...

The Air Quality Index (AQI) can tell you a lot about the health of the environment, but there are still measures you can take ...

An air quality alert was issued on Wednesday at 4:14 p.m. in effect until Thursday at 6 p.m. The alert is for San Bernardino ...

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

The fresh air came after days of acrid smoke from wildfires, but officials warned that conditions could rapidly worsen again.

Bangkok’s air quality took a nosedive today, earning it the grim title of the fourth worst city in the world for air ...