Skies over metro Phoenix were hazy and gray Tuesday morning. Here's what is causing poor air quality in Phoenix and when it ...

Continued exposure to fine particulate matter is linked to higher levels of diffuse myocardial fibrosis, according to a study ...

India's capital banned fuel sales to ageing vehicles on Tuesday as authorities try to tackle the sprawling megacity's ...

The Delhi government aims to create a safe outdoor space for citizens to go on morning walks during the peak pollution season ...

The previous AAP Delhi government had explored various measures to control air pollution, including the installation of two ...

The announcement comes as Delhi has grappled for years with hazardous air pollution levels that peak in the transition to ...

This West Coast city earned the top spot in the list of smoggiest U.S. cities, but visitors don't seem to be fazed by the haze.

If the air feels a little heavier today, you're not imagining it. A health advisory for elevated air pollution levels remains ...

If the air feels a little heavier today, you're not imagining it. A health advisory for elevated air pollution levels remains ...