Several states were experiencing 'unhealthy' levels of air pollution on Monday morning, according to data from the ...

But air pollution doesn’t just mean the smog we can see – the really dangerous stuff is invisible to the naked eye. A 2022 report by the World Health Organization cites that 99% of the entire ...

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.