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The Clean Air Act And The Constitution, Lisa Heinzerling

Georgetown Law Faculty Publications and Other Works

In the summer of 1997, the Environmental Protection Agency (EPA) strengthened the air quality standards for two air pollutants, particulate matter and ozone, based on mounting scientific evidence of the harmfulness of these pollutants at levels allowed by the existing standards. With respect to particulate matter (PM), the agency found that numerous epidemiological studies had established an association between PM levels and premature deaths in humans, especially in the elderly population. Indeed, one study on which the EPA relied had found that approximately 60,000 premature deaths in the United States alone could be attributed, annually, to particulate matter. The scientific …