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Darrin J Greenstein, Steven M Bay, Diana L Young, Stanford Asato, Keith A Maruya and Wenjian Lao The use of sediment toxicity identification evaluation methods to evaluate clean up targets in an urban estuary Integrated Environmental Assessment and Management 10

Version of Record online: 18 FEB 2014 | DOI: 10.1002/ieam.1512

Key Points

  • Sediment quality guidelines are often used to inform management decisions regarding contaminated sediments, such as determining chemicals of concern and clean up target concentrations.
  • Different conclusions were obtained in an urban estuary for stressor identifications using sediment quality guidelines versus site specific assessments with toxicity identification evaluations, bioavailable chemical measurements, and spiked sediment exposures.
  • Sediment quality guideline based clean up target concentrations were often multiple orders of magnitude below the concentrations found to be toxic by the spiked sediment exposures.

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