Learn what the air quality index (AQI) means, how it impacts your health, and how to stay safe when pollution is high.

A fire at the Owl Metals recycling facility that caused the Peninsula Expressway to shut down is still causing an air quality ...

After fires destroyed multiple neighborhoods across Los Angeles County, many residents looked up to find blue, smoke-free ...

Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...

Indicators like the Air Quality Index (AQI), commonly used to track air pollution levels, provide a rough sense of the ...

Those groups particularly sensitive to particulate matter in the air may want to limit time outside Friday and Saturday.

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

If you have been hearing about poor air quality in New York City Friday, you can breathe a deep sigh of relief (literally): ...

Lahore, Pakistan, has topped the global air pollution list today, with Dhaka, the capital of Bangladesh, holding the second ...

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

Dust and ash left behind from the wildfires across Southern California can be irritating and hazardous when inhaled.

CAQM revoked anti-pollution measures under Stage III of Grap after observing a consistent improvement in air quality levels ...