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Water-Sediment Controversy in Setting Environmental Standards for SeleniumAuthor(s): Steven J. Hamilton; A. Dennis Lemly
Source: Ecotoxicology and Environmental Safety 44, 227-235 (1999)
Publication Series: Miscellaneous Publication
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DescriptionA substantial amount of laboratory and field research on selenium effects to biota has been accomplished since the national water quality criterion was published for selenium in 1987. Many articles have documented adverse effects on biota at concentrations below the current chronic criterion of 5 µg/L. This commentary will present information to support a national water quality criterion for selenium of 2 µg/L, based on a wide array of support from federal, state, university, and international sources. Recently, two articles have argued for a sediment-based criterion and presented a model for deriving site-specific criteria. In one example, they calculate a criterion of 31 µg/L foi a stream with a low sediment selenium toxicity threshold and low site-specific sediment total organic carbon cotitent, which is substantially higher than the national criterion of 5 µg/L. Their basic premise for proposing a sediment-based method has been critically reviewed and problems in their approach are discussed.
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CitationHamilton, Steven J.; Lemly, A. Dennis. 1999. Water-Sediment Controversy in Setting Environmental Standards for Selenium. Ecotoxicology and Environmental Safety 44, 227-235 (1999)
- Review: A Position Paper on Selenium in Ecotoxicology: A Procedure for Deriving Site-Specific Water Quality Criteria
- Technical issues affecting the implementation of US environmental protection agency's proposed fish tissue-based aquatic criterion for selenium
- Selenium transport and bioaccumulation in aquatic ecosystems: a proposal for water quality criteria based on hydrological units.
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