Occurrence of estrogens, androgens and progestogens and estrogenic activity in surface water runoff from beef and dairy manure amended crop fields.

Autor: Havens SM; University of Wisconsin - Madison, Environmental Chemistry and Technology, 680 North Park Street, Madison, WI 53706, United States of America. Electronic address: shavens@iisd-ela.org., Hedman CJ; University of Wisconsin - Madison, Environmental Chemistry and Technology, 680 North Park Street, Madison, WI 53706, United States of America; Wisconsin State Laboratory of Hygiene, Environmental Health Division, 2601 Agriculture Drive, Madison, WI 53718, United States of America., Hemming JDC; Wisconsin State Laboratory of Hygiene, Environmental Health Division, 2601 Agriculture Drive, Madison, WI 53718, United States of America., Mieritz MG; Wisconsin State Laboratory of Hygiene, Environmental Health Division, 2601 Agriculture Drive, Madison, WI 53718, United States of America., Shafer MM; University of Wisconsin - Madison, Environmental Chemistry and Technology, 680 North Park Street, Madison, WI 53706, United States of America; Wisconsin State Laboratory of Hygiene, Environmental Health Division, 2601 Agriculture Drive, Madison, WI 53718, United States of America., Schauer JJ; University of Wisconsin - Madison, Environmental Chemistry and Technology, 680 North Park Street, Madison, WI 53706, United States of America; Wisconsin State Laboratory of Hygiene, Environmental Health Division, 2601 Agriculture Drive, Madison, WI 53718, United States of America.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2020 Mar 25; Vol. 710, pp. 136247. Date of Electronic Publication: 2019 Dec 20.
DOI: 10.1016/j.scitotenv.2019.136247
Abstrakt: Hormone contamination of aquatic systems has been shown to cause reproductive impairment of aquatic organisms. To assess to what extent beef and dairy farms represent a source of hormones to the aquatic environment, surface water runoff samples from three beef and dairy farms that utilize best manure management practices were evaluated for hormone concentrations (estrogens, androgens, progestogens) and estrogenic activity. Runoff was collected from weirs at the edge of each of six study fields from March 2008 to March 2010 and was analyzed for hormone concentrations using liquid chromatography with tandem mass spectrometry and for estrogenic activity using the E-screen bioassay. The majority of runoff events occurred in February and March when the soil was frozen. Progesterone and 4-androstenedione were the most frequently detected hormones (63% and 50%, respectively) and occurred at event loads up to 49,000 μg/ha and 26,000 μg/ha, respectively. Progesterone, 4-androstenedione, 17α-estradiol had the highest event load concentrations and were found at the field that sustained dairy cattle grazing during the winter and were likely due to application of excreta on frozen soil. The high progesterone event loads could lead to concentrations in receiving streams that exceed the lowest observable effects concentrations for fish. There was a consistent association with the elevated zearalenone presence and corn production. The synthetic hormones, 17α-trenbolone and 17β-trenbolone, were not detected in runoff from the beef farm that utilized trenbolone acetate implants, which is likely due to their short half lives. Estrogenic activity in runoff samples ranged from 0.09 to 133 ng/L estradiol equivalents, with 39% of runoff events exceeding the 2 ng/L predicted-no-effect-concentration for fish. These results indicate that grazing cattle and application of manure to frozen fields present the greatest risk to elevated hormones in runoff and that progesterone is the primary hormone of concern from beef and dairy operations.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2019. Published by Elsevier B.V.)
Databáze: MEDLINE
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