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EPA and Air Pollutants

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Using the efficiency criterion, carefully analyze the problem faced by the EPA in identifying hazardous air pollutants prior to the 1990 Amendments.

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Economic efficiency in air pollution regulations

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Prior to the 1990 Amendments, EPA's activity on air pollutant emissions had been focused on what are known as "criteria air pollutants." These air pollutants were deemed most likely which an ambient standard, objective guideline has been established to protect human health and welfare. This approach relied heavily upon risk assessment. In twenty years, EPA succeeded in listing only eight hazardous air pollutants for regulation. Risk assessment determined standards for air quality that limit the amount of various pollutants to specified levels. In addition pollution control measures focused on stationary industrial sources, while we now know that mobile sources contribute significantly to air ...

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