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Sci Total Environ

Title:		Spatial and seasonal occurrence of semi-volatile organic compounds (SVOCs) in fish influenced by snowmelt and municipal effluent discharge
Author(s):		Sapozhnikova Y; Salamova A; Haddad SP; Burket SR; Luers M; Brooks BW;
Address:		"USDA, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, PA, USA. Electronic address: yelena.sapozhnikova@usda.gov. Paul H. O'Neill School of Public and Environmental Affairs, Indiana University, Bloomington, IN, USA. Department of Environmental Science, Center for Reservoir and Aquatic Systems Research, Baylor University, Waco, TX, USA. Snyderville Basin Water Reclamation District, Park City, UT, USA. Department of Environmental Science, Center for Reservoir and Aquatic Systems Research, Baylor University, Waco, TX, USA; Guangdong Key Laboratory for Environmental Pollution and Health, School of the Environment, Jinan University, Guangzhou, China"
Journal Title:		Sci Total Environ
Year:		2020
Volume:		20200615
Issue:
Page Number:		140222 -
DOI:		10.1016/j.scitotenv.2020.140222
ISSN/ISBN:		1879-1026 (Electronic) 0048-9697 (Linking)
Abstract:		"In the present study we examined spatial and seasonal trends in the levels of a wide suite of semi-volatile organic compounds (SVOCs) in brown trout (Salmo trutta) and mottled sculpin (Cottus bairdii) in East Canyon Creek, Utah, USA, an effluent-dominated stream during summer months. Fish samples were collected from four sampling sites, including one reference site upstream, and three sites at incremental distances downstream of the effluent discharge over multiple seasons. The samples were analyzed for 218 lipophilic contaminants, including pesticides and their metabolites, polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), and polybrominated diphenyl ethers (PBDEs) and other flame retardants. Some PAHs, pesticides and their metabolites, PCBs, PBDEs and other flame retardants were measured in mottled sculpin (11 analytes) and brown trout (17 analytes). Hexachlorobenzene (HCB), p,p'-DDE, BDE-47 and triphenyl phosphate (TPHP) were the most frequently detected contaminants in mottled sculpin and brown trout, while BDE-47 and p,p'-DDE were measured at the highest concentrations, reaching up to 73 and 19 ng/g wet weight, respectively. Our results indicated that snowmelt did not alter accumulation of the examined lipophilic contaminants, and no consistent seasonal differences were observed in their accumulation. A spatial pattern was observed for PBDE congeners, where lowest levels were measured in fish tissues from a reference site, and highest concentrations were measured in fish collected downstream of the effluent discharge, indicating that municipal effluent discharge contributes to the elevated PBDE levels in fish residing in this effluent-dominated stream. We further calculated screening level consumption risks following United States Environmental Protection Agency (EPA) methods, and identified the importance of considering discharge gradients in effluent-dominated systems during bioaccumulation assessments"
Keywords:		"Animals Environmental Monitoring Flame Retardants/*analysis Halogenated Diphenyl Ethers/analysis Polychlorinated Biphenyls/*analysis Seasons Utah *Volatile Organic Compounds Water Pollutants, Chemical/*analysis Environmental contaminants Fish Municipal ef;"
Notes:		"MedlineSapozhnikova, Yelena Salamova, Amina Haddad, Samuel P Burket, S Rebekah Luers, Michael Brooks, Bryan W eng Netherlands 2020/08/14 Sci Total Environ. 2020 Oct 1; 737:140222. doi: 10.1016/j.scitotenv.2020.140222. Epub 2020 Jun 15"