Clean Air Policy

There's no doubt that great strides have been made in air pollution. Awareness, stricter legislation and improved technology have all contributed to improved air, land and water conditions. In fact, the nation's air quality is much cleaner than it was in some of the worst-affected areas, according to a recent report by the American Lung Association. Air emissions that contribute to pollutants have fallen since 1970 thanks to the Clean Air Act.Despite the improvements, 1 in 4 Americans live where pollution levels are often dangerous to breath. Since the ALA began studying particle pollution, almost all of the most polluted cities have consistently remained among the worst. Pittsburgh has been one of the 10 most polluted cities since 2004. The cities of Bakersfield and Merced, in California, are the most polluted cities in the U.S. this year and have been among the 25 most polluted since at least 2004. They are among many California cities, including Los Angeles, that have struggled with...

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