More Americans are being forced to breathe unhealthy air than at any other time in the past decade, according to a report released Wednesday by the American Lung Association. Nearly half of ...

A new USC study involving 8,500 children from across the country has revealed that a form of air pollution, largely the product of agricultural emissions, is linked to poor learning and memory ...

If the U.S. government decides to allow a company to pollute by forgoing enforcement, lawyers for the Justice Department are ...

Researchers from Tampere University and the University of Helsinki have identified an unexpected chemical process that may ...

The element mercury (Hg) is a unique metal that is liquid at ambient conditions, and easily volatilized to the atmosphere, where it is distributed on a global scale. This environmental contaminant ...

Wildfire season in California is getting longer, more intense and more destructive. That means millions more Californians breathe polluted air more often as smoke drifts into skies across the state.

Biomass burning, including the combustion of wood, charcoal and agricultural residues, is a major source of PM2.5, a fine ...

With temperatures set to soar again in Europe, the link between heatwaves and air pollution is back under the spotlight.

In a move that highlights the fickle nature of tribal sovereignty, the Southern Ute Indian Tribe has taken over administrative authority of two more permit programs established in the Clean Air Act.