The South Coast Air Quality Management District also extended ... including the non-desert portions of Los Angeles, Riverside and San Bernardino counties, and all of Orange County.

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

UCLA's annual survey reveals growing concerns over the high cost of living and deportation fears among LA County residents.

Los Angeles County residents continue to express deep frustration with the high cost of living, in addition to dealing with the impacts of the January wildfires, immigration and concerns about ...

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As fires burned in Los Angeles this year, newer toxin monitors found contaminants that aren’t measured by standard methods.

As the fires burned in Los Angeles, scientists and local air regulators deployed monitors to measure the levels of heavy ...

Pasadena released a new public health advisory following the latest results from the preliminary round of soil testing around ...

Recent studies show that upgrading HVAC systems and using HEPA filters to improve air quality in classrooms provide health ...

South Coast Air Quality Management District issues order for abatement requiring implementation of stricter and innovative measures to reduce odors.

All resources will provide a number for the air quality index. If it’s greater than 100, that is considered unhealthy for sensitive and at-risk groups. If it’s greater than 150, it is ...