Uptake and depuration of toxic halogenated aromatic hydrocarbons by the American oyster (Crassostrea virginica): a field study

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dc.acquisition-srcDownloaded from-Web of Scienceen_US
dc.call-noen_US
dc.contract-noen_US
dc.contributor.authorGardinali PRen_US
dc.contributor.authorSericano JLen_US
dc.contributor.authorWade TLen_US
dc.contributor.otherChemosphereen_US
dc.date.accessioned2010-02-15T17:16:53Z
dc.date.available2010-02-15T17:16:53Z
dc.date.issued2004 Janen_US
dc.degreeen_US
dc.description61-70en_US
dc.description-otheren_US
dc.description.abstractUptake and depuration of toxic chlorinated compounds such as planar polychlorinated biphenyls (PCBs 77, 126, 169), 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) and 2,3,7,8-tetrachlorodibenzofuran (TCDF) were monitored during a 50-day field study where American oysters (Crassostrea virginica) were transplanted back and forth between a heavily polluted area (Houston Ship Channel, SC) and a relatively unimpacted area (Hanna's Reef, HR) within Galveston Bay, TX. In general, low molecular weight, less lipophilic compounds accumulated in the oysters to a larger extent than high molecular weight ones. Estimated half-lives for planar PCB congeners 77 and 126 were 28 and 51 days, respectively for depuration of newly contaminated oysters (HR-SC-HR) while longer half-lives (42 and 60 days, respectively) were observed for the same compounds as they were eliminated from chronically contaminated individuals (SC-HR). Estimated half-lives for 2,3,7,8-TCDD and 2,3,7,8-TCDF were 35 and 36 days, respectively and were similar to the tetrachlorinated biphenyls (PCBs 77 and 81). Compared with ortho-substituted PCB congeners of the same chlorination level, the more toxic PCBs take longer to depurate from the oysters. With few exceptions, elimination of all toxic compounds investigated proceeded at a slower rate from the chronically exposed population that from the newly contaminated one. (C) 2003 Elsevier Ltd. All rights reserveden_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/23414
dc.latitudeen_US
dc.locationen_US
dc.longitudeen_US
dc.notesTimes Cited: 0ArticleEnglishGardinali, P. RFlorida Int Univ, Dept Chem, SE Environm Res Ctr, Univ Pk, Miami, FL 33199 USACited References Count: 17759NUTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDOXFORDen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries51061.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectAmerican oysteren_US
dc.subjectPCBsen_US
dc.subjectPCDD/PCDFsen_US
dc.subjectuptake/depurationen_US
dc.subjectGALVESTON BAYen_US
dc.subjectTXen_US
dc.subjectORGANIC CONTAMINANTSen_US
dc.subjectCOPLANAR PCBSen_US
dc.subjectACCUMULATIONen_US
dc.subjectPERSISTENCYen_US
dc.subjectsedimentsen_US
dc.subjectMUSSELSen_US
dc.subjectMONOen_US
dc.titleUptake and depuration of toxic halogenated aromatic hydrocarbons by the American oyster (Crassostrea virginica): a field studyen_US
dc.typeJournalen_US
dc.universityen_US
dc.vol-issue54(1)en_US

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