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

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

Unlike typical wildfires, smoke from the L.A. fires — consisting of toxic materials from burned down homes, cars, and more — ...

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

The Air Quality Index (AQI) can tell you a lot about the health of the environment, but there are still measures you can take ...

One possible reason for bad air quality in the city is a fire that broke out yesterday afternoon in Lancaster, Pennsylvania, where air quality is notably unhealthy. Why would a fire more than 150 ...

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

The air has improved in the LA region as firefighters get blazes under control, but there are questions about how safe the ...

The LA wildfires have burned tens of thousands of acres – but on some weather maps, air quality still looks good. What’s ...

Air quality in wildfire-stricken Los Angeles improved on Thursday from hazardous peaks hit earlier this month, as tiny soot ...

Portland’s air quality is currently comparable to Los Angeles, despite the ongoing wildfires in Southern California.

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