The Air Quality Index, or AQI, is the primary system used to warn the public when air pollution is dangerous. It’s based on ...

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

Los Angeles is now a week removed from the day that multiple devastating wildfires erupted to torch tens of thousands of ...

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

Several parts of southern California are currently under windblown dust and ash advisories as deadly wildfires continue to ...

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

NCR, authorities have imposed Stage 4 restrictions under the Graded Response Action Plan (GRAP). The air quality index soared ...

The sub-committee of the Commission for Air Quality Management (CAQM) has determined to implement all measures outlined in ...

Amid deteriorating air quality in the Indian capital, the federal government Wednesday reimposed stricter curbs under the Graded Response Action Plan (GRAP) Stage-IV in Delhi-National Capital Region ...

Fortunately, the US Environmental Protection Agency has a resource called the Air Quality Index to help monitor air quality.

Air quality is a big concern for everyone in Southern California, even for those who don't live near fire zones. Here are answers to some of your top questions.

Already known for having some of the worst air quality in the U.S., people in Southern California are now also at risk of ...