More expensive cars emit lower levels of pollution—meaning that motorists owning cheaper, higher-emitting vehicles contribute disproportionately to their local urban air quality problems, a new study ...

Air quality scientists slammed Republican Del. Christopher Bouchat and state Sen. Justin Ready’s plans to cross-file legislation that would eliminate the Maryland Vehicle Emissions Inspection Program ...

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THE EIGHT COUNTIES IN THE SAN JOAQUIN VALLEY experience some of the highest levels of air pollution in California, with levels of several pollutants far above the statewide average. All eight counties ...

Remember the banana peels, apple cores, and leftover pizza you recently threw in the garbage? Today, your food waste—and your neighbors’—is emitting climate-warming greenhouse gases as it decomposes ...

Beijing’s air pollution continued to get worse for some years after the games as China continued to industrialize, grow, and ...

Colorado aims to shift oversight of particulates PM10 from federal to state control amid efforts in air quality improvement.

President Trump signs resolutions into law banning states’ rights to set their own emissions standards. The US EPA granted that right 50 years ago. “Trump’s all-out assault on California continues—and ...

All those indoor air fresheners we like to plug in to make our houses smell better are actually pretty bad for the environment. They could have profound health implications for humans breathing in the ...

Using scented products indoors changes the chemistry of the air, producing as much air pollution as car exhaust does outside, according to a new study. Researchers say that breathing in these ...

As air pollution in Visakhapatnam escalates, the AP Pollution Control Board considers a comprehensive vehicular emission ...