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Bioavailability of Metals in the Environment: Implications for Health Risk Assessment

By
G.R. Krieger
G.R. Krieger
Dames and Moore, 633 17th Street, Suite 2500, Denver, CO 80202
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H.A. Hattemer-Frey
H.A. Hattemer-Frey
Dames and Moore, 633 17th Street, Suite 2500, Denver, CO 80202
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J.E. Kester
J.E. Kester
Dames and Moore, 633 17th Street, Suite 2500, Denver, CO 80202
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Published:
January 01, 1997

Abstract

The bioavailability of environmental contaminants, including heavy metals, is an important issue in assessing exposure and resultant risk to human and ecological receptors that contact these chemicals in the environment. Risk assessment at hazardous waste sites consists of two major elements: exposure assessment (estimation of chemical intake) and toxicity assessment (estimation of the chemical dose-response relationship). These two elements are combined in the process of risk characterization to provide risk managers with as complete and accurate a projection of site risks, including uncertainties, as possible. Chemical exposure is estimated by use of standard intake equations. For example, chemical intake via contaminated soil is modeled as (U.S. EPA, 1989):

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The Environmental Geochemistry of Mineral Deposits: Part A: Processes, Techniques, and Health Issues Part B: Case Studies and Research Topics

G.S. Plumlee
G.S. Plumlee
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M.J. Logsdon
M.J. Logsdon
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L.F. Filipek
L.F. Filipek
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Society of Economic Geologists
Volume
6
ISBN electronic:
9781629490137
Publication date:
January 01, 1997

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