Sorption of estrogen to three agricultural soils from Virginia, USA

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dc.contributor.authorKozarek, Jessica Lindbergen
dc.contributor.authorWolfe, Mary Leighen
dc.contributor.authorLove, Nancy G.en
dc.contributor.authorKnowlton, Katharine F.en
dc.contributor.departmentBiological Systems Engineeringen
dc.contributor.departmentDairy Scienceen
dc.coverage.countryUnited Statesen
dc.coverage.stateVirginiaen
dc.date.accessed2014-05-29en
dc.date.accessioned2014-05-30T13:13:46Zen
dc.date.available2014-05-30T13:13:46Zen
dc.date.issued2008en
dc.description.abstractLand-applied manures and grazing livestock are sources of estrogens to the environment. Natural steroid estrogens such as 17 beta-estradiol (E2) in low concentrations (ng L(-1)) can adversely affect the reproductive health of aquatic organisms. The goal of this research was to quantify the sorption of E2 to three agricultural soils form different physiographic regions in Virginia, a critical step in predicting transport of estrogens in runoff from agricultural fields. Batch equilibrium experiments were conducted with a range of E2 concentrations (50 to 2000 mu g L(-1)) in a background solution of 5 mM calcium chloride and 100 mg L(-1) sodium azide added to samples of Groseclose loam, Myatt sandy loam, and Cecil loam soils collected from the plow layer (0 to 15 cm) in addition to samples of Groseclose loam, Myatt sandy loam, and Cecil loam soils collected from the plow layer (0 to 15 cm) in addition to a Cecil soil sample from the Bt horizon. The concentration of E2 in the liquid phase was measured by gas chromatography/mass spectrometry (GC-MS) and was used to develop sorption isotherms for each soil. The time required to reach apparent equilibrium for all soils was less than 24 h. In general, the linear isotherm provided a good fit to model the sorption of E2 to agricultural soils from the plow layer (R(2) > 0.9). The sorption of E2 to agricultural soil was correlated to the organic carbon content of each soil (Pearson coefficient, 0.79) with log K(oc) values ranging from 2.90 to 3.99.en
dc.description.sponsorshipThe Cooperative Institute for Coastal and Estuarine Environmental Technology (CICEET)en
dc.description.sponsorshipVirginia Tech Department of Biological Systems Engineeringen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationKozarek, J. L.; Wolfe, M. L.; Love, N. G.; Knowlton, K. F., "Sorption of estrogen to three agricultural soils from Virginia, USA," Transactions of the ASABE. 51(5): 1591-1597. (doi: 10.13031/2013.25316) @2008en
dc.identifier.doihttps://doi.org/10.13031/2013.25316en
dc.identifier.issn2151-0032en
dc.identifier.urihttp://hdl.handle.net/10919/48199en
dc.identifier.urlhttp://elibrary.asabe.org/abstract.asp?aid=25316&t=3&dabs=Y&redir=&redirType=en
dc.language.isoenen
dc.publisherAmerican Society of Agricultural and Biological Engineersen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject17 beta-estradiolen
dc.subjectEstroneen
dc.subjectGas chromatographyen
dc.subjectIsothermsen
dc.subjectSorptionen
dc.subjectSewage-treatment plantsen
dc.subject17 beta-estradiolen
dc.subjectSteroid estrogensen
dc.subject17 beta-estradiolen
dc.subjectHormonesen
dc.subjectWateren
dc.subjectSystemsen
dc.subjectFateen
dc.subjectTestosteroneen
dc.subjectTransformationsen
dc.subjectAgricultureen
dc.titleSorption of estrogen to three agricultural soils from Virginia, USAen
dc.title.serialTransactions of the ASABEen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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