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

After several wildfires combined to torch tens of thousands of acres of vegetation in Los Angeles County ... monitors," said the South Coast Air Quality Management District on Tuesday.

LA faces an initial $358 million wildfire recovery bill that is expected to rise with no immediate state or federal aid ...

The fires that have ravaged Los Angeles over the past week were larger and burned hotter than they would have in a world without planet-warming fossil fuel pollution, a new analysis suggests.

President Trump’s freeze on federal spending has halted a $20 million project for new trees, including in Altadena.

On Sunday at 11:55 a.m. an updated air quality alert was issued in effect until Monday at noon. The alert is for San ...

Except for a reservoir with a damaged cover that had to be drained, Los Angeles had kept its reservoirs filled before the ...

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

Air quality in wildfire-stricken Los Angeles improved on Thursday from hazardous peaks hit earlier this month, as tiny soot particles that can penetrate the lungs and brain dropped to moderate levels, ...

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(Reuters) - Air quality in wildfire-stricken Los Angeles improved on Thursday from hazardous peaks hit earlier this month, as tiny soot particles that can penetrate the lungs and brain dropped to ...