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

Arizona is the only state with 'unhealthy' air quality. Part of it stems from our geography, but part also comes from our ...

AirNow is a collaborative effort of federal agencies that provides air quality data across the U.S. The site also has ...

As thousands of acres burn across Southern California, wildfire smoke is causing poor air quality in the region and beyond.

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

Here's what to know about improving your air quality at home during a wildfire—these expert tips help you breathe easier when ...

Smoke from the raging Southern California wildfires is filling city skylines, causing officials to warn residents of poor air ...

Good (Green): 0-50 AQI means there is little or no health risk associated with air quality. Moderate (Yellow): 51-100 AQI ...

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.

According to the New York State Department of Environmental Conservation, the Air Quality Index, or AQI, for Central New York ...

TNPCB reports slight air pollution increase during Bhogi festival in Chennai, with overall AQI ranging from 92 to 177.