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

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

Weather conditions are trapping smoke and other air pollutants near the ground where people breathe, officials said.

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

The Oregon Department of Environmental Quality issued an air quality advisory for Eastern Lane, Eastern Linn, Eastern Marion, ...

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

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

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

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

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

Dhaka topped the list of cities having the worst air quality with an AQI score of 295 at 8:55am this morning (January 27, ...