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Selenium : fate and effects in the aquatic environment

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Title: Selenium : fate and effects in the aquatic environment
Author: Chapman, Peter M.
Issue Date: 2000
Publicly Available in cIRcle 2009-07-07
Series/Report no. British Columbia Mine Reclamation Symposium 2000
Abstract: Selenium has a complex and not fully understood biogeochemistry in the aquatic environment as well as an unusual mode of toxicity (acute via water column exposure; chronic via food chain exposure). It has the narrowest range between nutritional requirements and toxicity of any essential element, and chronic toxicity is not readily predictable. Selenium contamination of waters or even of tissues does not necessarily indicate a problem; there are no generally accepted or universally accepted threshold values for chronic toxicity. Assessing risk must be done site-specifically in a risk assessment framework, focusing on reproductive effects to sensitive exposed fish and waterfowl and on "worst case" hydrologie units. Provided the necessary investigative and monitoring studies are done, any potential selenium problems can be addressed.
Affiliation: Applied Science, Faculty of
URI: http://hdl.handle.net/2429/10363
Peer Review Status: Unreviewed
Scholarly Level: Other

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