Soil ingestion--a major pathway of heavy metals into livestock grazing contaminated land.

Abstract

An estimated 4000 km2 of agricultural land in England and Wales has been contaminated in varying degrees by past mining and smelting activities. Contaminants include one or more of the metals Cu, Pb, Zn, Cd and As. Studies conducted in southwest and central England conclude that only a small proportion of these metals are taken up into the leaf material of… (More)

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