Air Pollution

While the air pollution in the U.S. has gotten cleaner in the past decade, pollution inequity has remained high. USA TODAY California's reign as the U.S. state with the worst air pollution continues, with Los Angeles again the nation's smoggiest metro area…

Air pollution around the U.S.

A coal-powered plant near Linfen, in Chinas Shannxi province, a city with some of the worlds worst air pollution. Credit: NurPhoto/Getty Air pollution kills. Fine particles produced by cars, industrial plants and numerous other sources are particularly dange…

A coal-powered plant near Linfen, in Chinas Shannxi province, a city with some of the worlds worst air pollution. Credit: NurPhoto/Getty Air pollution kills. Fine particles produced by cars, industrial plants and numerous other sources are particularly dange…

Every Breath You Take Nicola Twilley, in her insightful piece about the overlooked dangers of indoor air pollution, writes that a very unhealthy designation for outdoor air is rare in the United States today (Home Smog, April 8th). This is true, but it is im…

Diesel exhaust is dirty, and a big contributor to the 4 to 7 million annual air pollution-caused deaths around the globe. Its intuitive, then, that any effort to clean that exhaust would be beneficial. But a new study suggests filtering diesel fumes might not…