Towards Using Comparative Risk Assessment to Manage Contaminated Sediments

Comparative risk assessment (CRA) has been used as an environmental decision making tool at a range of regulatory levels in the past two decades. Contaminated and uncontaminated sediments are currently managed using a range of approaches and technologies; however, a method for conducting a comprehensive, multidimensional assessment of the risks, costs and benefits associated with each option has yet to be developed. The development and application of CRA to sediment management problems will provide for a more comprehensive characterization and analysis of the risks posed by potential management alternatives. The need for a formal CRA framework and the potential benefits and key elements of such a framework are discussed.

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