The use of the physiologically-based extraction test in contaminated land studies

John Dean, Jane Entwistle, Ikechukwu Okorie

    Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

    Abstract

    The physiologically-based extraction test (PBET) is being applied to soil from contaminated land sites to assess the environmental risk to humans. Various procedures have evolved based on the use of simulated gastric and intestinal juices. This chapter evaluates one approach to assess the environmental risk to humans from soil contaminated with metals. Soil samples have been obtained from contaminated sites in N.E. England with a historic legacy of pollution from heavy metals. Initial work will assess the total metal content of soils using microwave acid digestion followed by inductively coupled plasma mass spectrometry. A PBET test is evaluated and undertaken on the soils. The results highlight the additional, or supplementary information, provided by PBET and the role bioaccessibility data might play in a site specific risk assessment.
    Original languageEnglish
    Title of host publicationContaminated soils: environmental impact, disposal, and treatment
    EditorsRobert V. Steinberg
    Place of PublicationNew York
    PublisherNova Science Publishers
    Pages399-418
    Number of pages20
    ISBN (Electronic)9781617612763
    ISBN (Print)9781607417910
    Publication statusPublished - Oct 2009

    Publication series

    NameEnvironmental Remediation Technologies, Regulations and Safety
    PublisherNova Science Publishers

    Keywords

    • in-vitro gastrointestinal extraction
    • Inductively coupled plasma mass spectrometry (ICP MS)
    • Microwave digestion
    • Physiologically-based extraction test (PBET)

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