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

Wildfire ash carries many carcinogens that could cause short- and long-term health problems, including asthma attacks and ...

The hazardous air quality in Los Angeles is largely a result of smoke from the Pacific Palisades Fire, intensified by strong ...

Twelve Texas counties have recently exceeded federal air quality standards for particulate matter, commonly known as soot.

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

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

Ash from the recent LA County fires and burn scars formed by other wildfires in the fall can be dispersed by strong winds.

Wildfires in Los Angeles County continued to burn on Monday, January 13, 2025, as firefighters worked to contain portions of ...

On Wednesday at 6:04 a.m. an air quality alert was issued valid until 7 p.m. The alert is for Eastern San Fernando Valley, ...

An air quality alert was issued on Monday at 12:41 p.m. in effect until Tuesday at 12:15 p.m. The alert is for San Bernardino ...

On Friday, the South Coast Air Quality Management District issued a smoke advisory for the fourth consecutive day, largely ...

AirNow is a collaborative effort of federal agencies that provides air quality data across the U.S. The site also has ...