In this undated file photo, steam and pollution rise on a cold day at the Arapaho Station Coal Power Plant, a coal fired power plant along the Platte River in Littleton, just outside Denver, Colorado.

Researchers from Emory University received two separate grants, totaling $15 million, from the NIH to lead a multifaceted study into why specific types of air pollution increase the risk of ...

Air in the U.S. has gotten cleaner for decades, adding years to people's lives and preventing millions of asthma attacks, but nearly half of Americans still live with unhealthy air pollution, a new ...

Despite improvements in air quality in past decades, 156 million Americans still breathe in too much soot or ozone, says the annual State of the... Air pollution still plagues nearly half of Americans ...