The president exempted a copper smelter in Arizona from air-quality rules. An E.P.A. official guided the company that sought ...

Thirdhand smoke stays on surfaces and slowly pollutes indoor air long after smoking stops within indoor environments.

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 ...

Researchers explain how nitrate from farming and fish ponds moves through water and pollutes freshwater lakes.

Air pollution remains one of the most serious environmental and public health challenges facing the world today. From the exhaust fumes on busy highways to industrial emissions, wildfire smoke, and ...

While the dangers of secondhand smoke are widely recognized, a new study led by Prof. Sun Yele at the Institute of ...

Environmental agencies are searching for the source of pollution that has created two contaminated hot spots in the lower Clinton River, hindered a long-ranging environmental cleanup effort and ...

A UC Santa Cruz research project is documenting how a shift in farm work patterns creates greater health risks.

We frequently refer to ecological “crises” — using the plural form — to acknowledge the multiple, interconnected ...

The proposed system in Delhi will use hyperlocal sensors and dynamic source apportionment for targeted interventions.

This winter, despite anti-pollution curbs being in place and a dip in farm fires -- lowest in five years -- the air quality ...