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4.0 ENVIRONMENTAL TRANSPORT AND FATE PRINCIPAL FINDINGS Both EDB and EDC:

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Abstract

o Have low to moderate sorptive affinity for aquifer solids o Are relatively mobile in groundwater o Can volatilize from solution o Do no bioconcentrate or bioaccumulate in food chains o Biodegrade under both aerobic and anaerobic conditions EDB biodegrades more rapidly anaerobically (half-life of 15 to 50 days) than aerobically (half-life of 35 to 360 days) EDC biodegrades more rapidly aerobically (half-life of 100 days) than anaerobically (half-life of 400 days) This section provides an overview of the environmental transport and fate of EDB and EDC. Much of the discussion is based on the physical and chemical properties discussed in Section 3.0 of this report. Key sources of information used in describing environmental fate include toxicological profiles for EDB and EDC published by ATSDR (Refs. 4-1 and 4-2) and a human health risk assessment protocol and technical fact sheets on EDB and EDC published by EPA (Refs. 4-7, 4-8, and 4-9)

Year: 2011
OAI identifier: oai:CiteSeerX.psu:10.1.1.184.835
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