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EPA wants tougher lead rules

The Environmental Protection Agency proposed a major tightening Thursday of the health standard for airborne lead, saying that current allowable concentrations do not adequately protect public health, especially children. The lead health standard has not been changed since the initial requirement was enacted 30 years ago. Since then, lead pollution has dropped substantially, largely because it was banned for use in gasoline. Lead emissions still are an air quality problem, largely from industrial sources, the agency said.

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