Issues in Risk Assessment (1993) / Chapter Skim
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Implications of Uncertainty for Ecological Risk Assessment
Implications of Uncertainty for Ecological Risk Assessment
Pages 328-328
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Please use the print version of this publication as the authoritative version for attribution. • Measurement uncertainties, e.g., low statistical power due to insufficient observations, difficulties in making physical measurements, inappropriateness of measurements, and natural variability in organic responses to stress; • Conditions of observation, e.g., spatiotemporal variability in climate and ecosystem structure, differences between natural and laboratory conditions, and differences between tested or observed species and species of interest for risk assessment; • Inadequacies of models, e.g., lack of or knowledge concerning underlying mechanisms, failure to consider multiple stresses and responses, extrapolation beyond the range of observations, and instability of parameter estimates.
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