University of Utah researchers believe inflammation starts a months-long process that increases risk of aneurysm rupture.

With 7 of its ambitious rules for cars, trucks and trains repealed, California officials must find new ways to clean up the nation’s worst air quality. But officials face growing pushback about ...

Glide over the sprawling city of Delhi, with this eye-opening drone footage, revealing the dense smog and air pollution that ...

Gas-powered cars and diesel trucks remain the state’s largest sources of smog and soot despite decades of cutting emissions.

Air quality monitors reveal the eight U.S. cities with the dirtiest air, where pollution from vehicles, industry, and geography combine to create dangerous smog and health hazards for residents. [air ...

Aerosol paint makers will get additional time to comply with updated regulations limiting air emissions that trigger ozone ...

In 1970, when a nearly unanimous Congress approved sweeping changes strengthening federal air pollution laws, one proviso ...

Air pollution articles. Read scientific research on air pollution including pollution sources, health effects, and ways to reduce air pollution. Full text, images.

So happy smogiversary, Los Angeles. We can breathe a lot easier than we used to, but don't let that fool you — we still have ...

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

Rapid growth fuels smog in Hanoi, one of the world's most polluted cities Photos of the Vietnamese capital, home to almost 9 million people, show the environmental cost of the Southeast Asian ...