Assessment of Heavy Metals in Street Dusts of Tehran Using Enrichment Factor and Geo-Accumulation Index

Abstract

Street dust contains small matters coming from motor combustion and other anthropogenic sources. These elements are known as indicators of heavy metals, which have an important role in environmental pollution. The purpose of this study is to evaluate the degrees of arsenic, cadmium, copper, lead, and zinc pollution in street dust by using of the geo-accumulation index and enrichment factor.