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AN OVERVIEW OF THE DEVELOPMENT, STATUS, AND APPLICATION OF EQUILIBRIUM PARTITIONING SEDIMENT BENCHMARKS FOR PAH MIXTURES
Citation:
DRISCOLL, S. AND R. M. BURGESS. AN OVERVIEW OF THE DEVELOPMENT, STATUS, AND APPLICATION OF EQUILIBRIUM PARTITIONING SEDIMENT BENCHMARKS FOR PAH MIXTURES. HUMAN AND ECOLOGICAL RISK ASSESSMENT. CRC Press LLC, Boca Raton, FL, 13(2):286-301, (2007).
Impact/Purpose:
To review the development, theoretical basis, regulatory status, and application of the U.S. Environmental Protection Agency's (USEPA's) Equilibrium Partitioning Sediment Benchmarks (ESBs) for PAH mixtures
Description:
This article provides an overview of the development, theoretical basis, regulatory status, and application of the U.S. Environmental Protection Agency's (USEPA's)< Equilibrium Partitioning Sediment Benchmarks (ESBs) for PAH mixtures. ESBs are compared to other sediment quality guidelines (SQGs) for PAHs. Data that examine
the ability of the ESB approach to predict toxic effects to invertebrates are discussed.
A USEPA draft methodology for the development of site-specific ESBs that takes into
account the limited bioavailability of PAHs at certain sites is discussed. Research is
presented that compares the ability of ESBs and site-specific ESBs to predict the
toxicity of sediments collected from manufactured gas plants (MGPs). Site-specific
ESBs that accounted for adsorption of PAHs onto black carbon were better predictors
of the toxicity of sediments from MGP sites than ESBs that did not account for
adsorption to black carbon.