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National Status And Trends, Mussel Watch Program : A 2017 Assessment of Legacy Organic Contaminants in the Gulf of Mexico
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2024
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Description:In 2017, the National Oceanic and Atmospheric Administration (NOAA) Mussel Watch Program (MWP) conducted an assessment of the presence, distribution, and concentrations of legacy organic contaminants in Eastern oysters (Crassostrea virginica) from the Gulf of Mexico’s coastal waters. To accomplish this, the MWP utilized a sentinel-based monitoring approach by collecting and analyzing bivalves as surrogates for coastal water pollution. Mussels and oysters are sessile organisms that filter and accumulate particles from water; therefore, measuring contaminant levels in their tissue is a good indicator of local chemical contamination. The oyster samples were measured for 9 legacy compound groups, including butyltins, chlordanes, chlorobenzenes, dichlorodiphenyltrichloroethane (DDTs), dieldrins, endosulfans, hexachlorocyclohexane (HCHs), polycyclic aromatic hydrocarbons (PAHs), and polychlorinated biphenyls (PCBs) in addition to 2 individual contaminants, chlorpyrifos and mirex. Oyster tissue samples from 44 monitoring sites across the Gulf Coasts of Florida, Alabama, Mississippi, Louisiana, and Texas were analyzed in this study.
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Rights Information:CC0 Public Domain
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Compliance:Submitted
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