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. 2006 Feb;62(7):1153-60.
doi: 10.1016/j.chemosphere.2005.06.034. Epub 2005 Aug 9.

Polybrominated diphenyl ethers in fish and wastewater samples from an area of the Penobscot River in central Maine

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Polybrominated diphenyl ethers in fish and wastewater samples from an area of the Penobscot River in central Maine

Therese desJardins Anderson et al. Chemosphere. 2006 Feb.

Abstract

Polybrominated diphenyl ethers (PBDEs) are one class of flame retardants commonly used in textiles, foams and plastics. They are similar in behavior to the well-studied polychlorinated biphenyls and growing evidence suggests they are widespread global environmental pollutants that are capable of bioaccumulation. Fish tissue samples were collected from sites along the Penobscot River in central Maine. The total concentration of tetra- to hepta-PBDEs in these samples were calculated and generally increased from upstream to downstream locations ranging from 800 to 1810 ng/g lipid at the northernmost site to 5750-29000 ng/g at the downstream sampling site. BDE-47, 99 and 100 were the predominant congeners found in the fish tissue. Wastewater treatment plants (WWTPs) are one of the potential sources of these compounds to the environment through effluent discharge and landspreading of biosolids. Influent, effluent, activated sludge and dewatered biosolids were collected and analyzed for PBDE congeners from a WWTP at Orono, Maine. PBDE congeners were detectable in effluent samples at concentrations from 0.31 to 0.90 microg/l, in the activated sludge at 1.32-3.8 microg/l and in the influent at 4.2-4.3 microg/l, but the majority of the material was concentrated in the biosolids. Total concentration in the biosolids was 2320-3530 microg/kg dry weight.

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