The number of people who would benefit by 2020 by limiting the allowable amount of pollution-forming ozone in the air.
SOURCE: Environmental Protection Agency | The Washington Post - January 8, 2010
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EPA proposes stricter smog pollutant limits Article | The Environmental Protection Agency proposed stricter limits Thursday on the amount of pollution-forming ozone allowed in the air, significantly tightening rules the Bush administration had set for the nation's most widespread air pollutant.
