Recent data from the Environmental Protection Agency shows air quality in certain regions of the U.S. is deteriorating, ...

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

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

Government measures fall short, experts say, as air quality index (AQI) readings become more hazardous in Thai capital.

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

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

An air quality alert was issued on Tuesday at 5:03 a.m. for Josephine County.

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

Oregon DEQ issues air quality advisory for several counties due to air stagnation trapping smoke and pollutants.

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

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

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