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More than one in three people in the U.S. live in counties that had unhealthy levels of ozone or particle pollution, according to the American Lung Association’s new “State of the Air” report.

Indian capital New Delhi is grappling with severely hazardous air quality as pollution levels are hitting the rooftop. On Monday morning, a toxic haze engulfed the city, affecting visibility and ...

WASHINGTON, D.C. - Switching from gasoline to ethanol - touted as a green alternative at the pump - may create dirtier air, causing slightly more smog-related deaths, a new study says. Nearly 200 more ...

Using the city of Lahore, Pakistan, as a detailed case study, the research offers broader insights into why smog remains so persistent in densely populated cities with high transport demand and ...

Levels of pollution have soared past the levels considered hazardous by the World Health Organisation, as dense smog hangs over Beijing and 30 other cities in northern and eastern China. As Beijing ...

Jacksonville's air quality grade dropped from "A" to "B" due to increased ozone smog and particle pollution, according to the American Lung Association. The city's air quality was recently designated ...

Air pollution from oil and gas is causing 91,000 premature deaths and hundreds of thousands of health issues across the United States annually, with Black, Asian, Native American and Hispanic groups ...

Appliances that are among the leading causes of smog could be phased out in Southern California after regulators vote on Friday. The South Coast Air Quality Management District Governing Board will ...