Zinc from Automobile Tires in Urban Runoff

Abstract
Zinc and lead are among the most prevalent toxic heavy metals found in urban runoff. Heavy metals in urban runoff may be derived from sources other than automobile traffic. The intent of the present work is to relate quantitatively the concentrations of zinc and lead in urban runoff to the levels of zinc in automobile tires and lead in gasoline. In particular, the purpose of this note is to determine whether zinc in automobile tires can be a major contributor to the zinc in urban runoff.

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