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

S. M. Charlesworth, J. A. Lees

    Research output: Contribution to journalArticle

    65 Citations (Scopus)

    Abstract

    Samples of urban dusts and sediments have been collected and categorised into three compartments; those which act mainly as sources, those undergoing transport and those which have been deposited. The sediments were fractionated into <63 μm 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 variability in metal concentrations. Overall, however, the <63 μm fraction dominates regardless of compartment. Some heavy metal concentrations decrease through the source-transport-deposit process, possibly due to selective onward transport of finer material or other anthropogenic processes unique to the urban environment (e.g. street cleansing). Site-specificity is indicated in a comparison with other similar studies.

    Original languageEnglish
    Pages (from-to)97-115
    Number of pages19
    JournalEnvironmental Geochemistry and Health
    Volume21
    DOIs
    Publication statusPublished - 1 Jun 1999

    Keywords

    • Heavy metals
    • Particle size control
    • Polluted dusts and sediments

    ASJC Scopus subject areas

    • Environmental Engineering
    • Environmental Chemistry
    • Water Science and Technology
    • Environmental Science(all)
    • Geochemistry and Petrology

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