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Field Evaluation of an Avian Risk Assessment Model
Citation:
VYAS, N. B., J. W. SPANN, C. S. HULSE, R. S. BORGES, R. S. BENNETT, M. TORREZ, B. I. WILLIAMS, AND R. LEFFEL. Field Evaluation of an Avian Risk Assessment Model. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY. Society of Environmental Toxicology and Chemistry, Pensacola, FL, 25(7):1762-1771, (2006).
Impact/Purpose:
To determine the effectiveness of a deterministic risk assessment model for evaluating the potential of adverse effects to birds
Description:
We conducted two laboratory subacute dietary toxicity tests and one outdoor subacute dietary toxicity test to determine the effectiveness of the U.S. Environmental Protection Agency's deterministic risk assessment model for evaluating the potential of adverse effects to birds in the field. The deterministic risk assessment method identified the potential risk to birds in general, but the factors associated with extrapolating from the laboratory to the thield and from the laboratory test species to other species resulted in the underestimation of risk to goslings. This study indicates that laboratory-based risk quotients should be interpreted with caution.