Air quality in wildfire-stricken Los Angeles improved on Thursday from hazardous peaks hit earlier this month, as tiny soot ...

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 ...

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

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 8:08 p.m. in effect until Wednesday at 7 p.m. The alert is for Joshua Tree, ...

As people return to the structures spared from Los Angeles wildfires, experts warn that they should be careful of the air ...

Arizona is the only state with 'unhealthy' air quality. Part of it stems from our geography, but part also comes from our ...

People are taking precautions as multiple wildfires cause poor air quality across a wide swath of Los Angeles County.

NCR's air quality on Thursday revoked curbs under stage 4 of the Graded Response Action Plan (GRAP) amid dip in pollution ...

The air in 12 Texas counties exceeded federal soot standards, but Texas regulators say only four should face consequences.

Bangkok and many parts of Thailand are suffering from dangerous air pollution, as levels of fine particulate matter (PM2.5) ...