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Identification of Estrogenic Chemicals in STW Effluent. 2. In Vivo Responses in Trout and Roach

Routledge, E. J., Sheahan, D., Desbrow, C., Brighty, G. C., Waldock, M., Sumpter, J. P.·1998·Environmental Science & Technology

Abstract

The occurrence of certain natural and synthetic steroidal estrogens in the final effluent from STW has been demonstrated. 17β-Estradiol and estrone were present at concentrations in the tens of nanograms per liter range, and the synthetic estrogen 17α-ethynylestradiol was also identified, albeit in the low nanogram per liter range. The findings from subsequent in vivo tank trial experiments, in which adult male rainbow trout ( Oncorhynchus mykiss ) and adult roach ( Rutilus rutilus ) were exposed for 21 days via the water to environmentally relevant concentrations of 17β-estradiol and estrone are presented. In addition, the response of adult male and female roach following exposure to 17β-estradiol (1, 10, and 100 ng/L) was compared to the response to the alkylphenolic xenoestrogen, 4- tert -octylphenol (1, 10 and 100 μg/L). Plasma levels of vitellogenin were determined using previously validated radioimmunoassays in order to measure the estrogenic response of the fish to the varying concentrations of the compounds tested. The results indicate that environmentally relevant concentra tions of natural steroidal estrogens are sufficient to account for the levels of vitellogenin synthesis observed in caged male fish placed downstream of certain STW effluent discharges in British rivers.

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Authors
Routledge, E. J., Sheahan, D., Desbrow, C., Brighty, G. C., Waldock, M., & Sumpter, J. P.
Venue
Environmental Science & Technology
Published
1998-04-17
Volume
32
Issue
11
Pages
1559-1565
ISSN
  • 0013-936X (ISSN-L)
  • 1520-5851
OpenAlex
W1988757070
Cited by
995
References
0
FWCI
33.55
Type
journal article
Language
en
Open access
closed

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