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

Air quality in Pittsburgh is improving, according to year-over-year data. Why it matters: Long-term exposure to poor air quality is harmful to your health and has been a problem in Pittsburgh for ...

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

In the wake of the Palisades and Eaton fires, concerns about air quality across the county have been on the rise.

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

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

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

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

The National Building Research Organization (NBRO) has announced that Sri Lanka’s Air Quality Index (AQI) is expected to ...

The air quality in the national capital has once again deteriorated, falling into the 'very poor' category on Wednesday ...

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

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