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Estrogenic potency of effluent from two sewage treatment works in the United Kingdom

Estrogenic potency of effluent from two sewage treatment works in the United Kingdom Rainbow trout were exposed for 3 weeks (in a flow‐through system) to various dilutions of treated effluent (25, 50, 75, and 100%) from Harpenden and Chelmsford sewage treatment works (STW) during November 1994 and August 1996, respectively, and the induction of plasma vitellogenin was measured. Significant (p < 0.05) increases in plasma vitellogenin concentrations occurred in fish held in effluent from Harpenden STW at concentrations of 50% and above. At Chelmsford STW, the effluent appeared to be more potent, causing induction of vitellogenin in fish at concentrations as low as 25% (compared with 50% for the Harpenden effluent). Exposure to lower concentrations of effluent emanating from Chelmsford in April of the following year indicated that estrogenic activity was diluted to no‐effect levels at this STW at concentrations between 12 and 25%. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Environmental Toxicology & Chemistry Wiley

Estrogenic potency of effluent from two sewage treatment works in the United Kingdom

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References (57)

Publisher
Wiley
Copyright
Copyright © 1999 SETAC
ISSN
0730-7268
eISSN
1552-8618
DOI
10.1002/etc.5620180517
Publisher site
See Article on Publisher Site

Abstract

Rainbow trout were exposed for 3 weeks (in a flow‐through system) to various dilutions of treated effluent (25, 50, 75, and 100%) from Harpenden and Chelmsford sewage treatment works (STW) during November 1994 and August 1996, respectively, and the induction of plasma vitellogenin was measured. Significant (p < 0.05) increases in plasma vitellogenin concentrations occurred in fish held in effluent from Harpenden STW at concentrations of 50% and above. At Chelmsford STW, the effluent appeared to be more potent, causing induction of vitellogenin in fish at concentrations as low as 25% (compared with 50% for the Harpenden effluent). Exposure to lower concentrations of effluent emanating from Chelmsford in April of the following year indicated that estrogenic activity was diluted to no‐effect levels at this STW at concentrations between 12 and 25%.

Journal

Environmental Toxicology & ChemistryWiley

Published: May 1, 1999

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