The distribution of heavy metals in deposited urban dusts and sediments, coventry, england

摘要

Samples of urban dusts and sediments have been collected an categorised into three com- partments; those which act mainly as sources, those undergoing transport and those which have been deposited. The sediments were fractionated into ＜63 蘭 to match similar sized lacustrine sediments and ＜2 mm to represent natural and anthropogenic fluvially transported sediments. Preliminary results of total heavy metals analysis show that the ＜2 mm fraction of the source group exhibits the greatest variabilty in metal concnetraton.