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Some residents of Hayden believe that emissions of toxic metals from the Asarco copper smelter have caused cancer and other maladies. The EPA has accused Asarco of underreporting such emissions

From Tonawanda, N.Y., to Hayden, hundreds of U.S. communities are still exposed to pollutants, which can cause cancer, birth defects and other health issues — more than 20 years after passage of the Clean Air Act. Read more»

Recent legislation would leave many communities vulnerable to airborne chemicals, among them Chester, Pa. 'They told me a long time ago that I should move,' said Elwood Patrick, 'and I wish I had.'

The stumbling, two-decade-old war on hazardous air pollutants — declared on Nov. 15, 1990, the day President George H. W. Bush signed the Clean Air Act amendments into law — has stalled on bureaucratic dawdling, industry resistance, legal maneuvering, limited resources and politics. Read more»

The Hunter coal-fired power plant in Castledale, Utah.

In the face of opposition from industry and Republicans, the Environmental Protection Agency is attempting to reduce harmful emissions from coal-fired power plants that studies have linked to illnesses and tens of thousands of premature deaths every year. Read more»