Quantifying health risk reductions from implementation of a passive net alkaline wetland
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The potential effectiveness of a constructed passive net alkaline wetland in reducing human health risks from heavy metals in surface waters was evaluated by using a multimedia model. Scenarios were developed using information available from site reports, state, federal, and standard engineering sources. The scenarios replicated observed heavy metal concentrations in the waters of a volunteer wetland and estimated the concentrations after implementation of a constructed passive net alkaline wetland. The greatest reductions in risks are expected to occur soon after construction, with children benefiting more than adults.
Keywordsheavy metals mine drainage multimedia model wetland
This research was supported by the U.S. Geological Survey, Research Grant WR-01-RS-001A; U.S. Geological Survey, Research Grant WR-01-RS-002A; U.S. Environmental Protection Agency, Research Grant AA-5-74513-OU1; and State of Oklahoma, Regents for Higher Education, Research Grant AA-5-74583-OU1. The views and opinions expressed are those of the authors and do not necessarily represent the official opinions of the funding sources.
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