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Figure 11 USEPA framework for ecological risk assessment
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1,1,1-trichloroethane approaches assessing ecological risks assessment and measurement assessment decision-support system assessment endpoints assessor Bartell Biddinger chemical Commencement Bay component groups conceptual model criteria data and models databases defined diagram discussed distribution DMIA documentation ecological effects ecological risk assessment ecosystem environment environmental ERADSS example expected loss expert system exposure feasibility Figure formulation habitat identified implementation input integration interaction Internet issues iterative Latin hypercube sampling manager and risk measurement endpoints modeling system naphthalene organisms Pellston workshop performance population potential predictive problem problem-formulation phase QSARs quantitative structure-activity relationship regulatory response risk assessment decision-support risk characterization risk estimation risk management decision risk manager SETAC simulation spatial species spotted owl stakeholders steering committee steps stressor studies system design technical temporal tion toxicity Toxicology trophic level U.S. Geological Survey uncertainty USEPA variance workgroup workshop participants