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How might selenium moderate the toxic effects of mercury in stream fish of the western U.S.?

Dates

Year
2009

Citation

Peterson, S.A., Ralston, N.V.C., Peck, D.V., Van Sickle, J., Robertson, J.D., Spate, V.L., and Morris, J. S., 2009, How might selenium moderate the toxic effects of mercury in stream fish of the western U.S.?: v. 43, p. 3919-3925.

Summary

The ability of selenium (Se) to moderate mercury (Hg) toxicity is well established in the literature. Mercury exposures that might otherwise produce toxic effects are counteracted by Se, particularly when Se:Hg molar ratios approach or exceed 1. We analyzed whole body Se and Hg concentrations in 468 fish representing 40 species from 137 sites across 12 western U.S. states. The fish samples were evaluated relative to a published wildlife protective Hg threshold (0.1 Delta *mg Hg.g-1 wet wt.), the current tissue based methylmercury (MeHg) water quality criterion (WQC) for the protection of humans (0.3 Delta *mg Hg.g-1 wet wt.) and to presumed protections against Hg toxicity when Se:Hg molar ratios are >1. A large proportion (56%) of [...]

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  • Western Energy Citation Clearinghouse

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Additional Information

Alternate Titles

  • Environmental Science & Technology [Environ. Sci. Technol.]

Identifiers

Type Scheme Key
ISBN WECC 0013-936X

Citation Extension

citationTypeGeneric
parts
typePages
value3919-3925
typeVolume
value43

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