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

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

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

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

Bangladesh's densely populated capital Dhaka ranked as the city with the third-worst air quality globally, with an Air ...

Dhaka, the overcrowded capital city of Bangladesh, has again ranked the fourth on the list of cities with the worst air ...

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

The areas surrounding the wildfire, including the San Gabriel Mountains, the 5 Freeway corridor near Castaic Lake and Santa Clarita, are expected to be the most impacted by the Hughes fire, which ...

Persistent fires led to a haze of air pollution blanketing Oxnard, California. Dramatic footage captured an eerie scene, turning the sky a light orange and covering 598 Town Centre Drive with smoke ...

The Oregon Department of Environmental Quality issued an air quality advisory for La Pine Tuesday due to stagnant air ...

Officials are warning of windblown ash and other pollutants from Los Angeles-area fires and say air quality readers won't ...

Today’s air was classified as ‘very unhealthy', referring to a severe health threat, according to the AQI index ...