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COMPARISON AND EVALUATION OF FIELD AND LABORATORY TOXICITY TESTS WITH FENVALERATE ON AN ESTUARINE CRUSTACEAN
Citation:
Baughman, D., D. Moore, AND G. Scott. COMPARISON AND EVALUATION OF FIELD AND LABORATORY TOXICITY TESTS WITH FENVALERATE ON AN ESTUARINE CRUSTACEAN. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-89/538 (NTIS PB91206839), 1989.
Description:
A combination of laboratory toxicity tests was conducted on the grass shrimp, Palaemonetes pugio. est results were compared with field toxicity tests to evaluate the usefulness of laboratory testing in estimating mortality from fenvalerate exposure associated with agricultural runoff. he study examined an integrated approach for assessing impacts from fenvalerate on estuarine fauna by utilizing 96 and pulsed-dose (6h) laboratory toxicity tests, and in-situ toxicity test methodologies. omparisons of two field toxicity tests with laboratory-derived LC50 values showed that in one case the best estimator of field mortality was the 96h LC50 value while the 6h pulse-dose LC50 was the better estimator in a second test. his variation may be due to the limitations of the water sampling technique used in characterizing the pesticide exposure regime during field toxicity tests. hese comparisons suggest that a combination of laboratory and field toxicity testing, and composite water sampling is required to estimate the actual field mortality from fenvalerate associated with agricultural runoff.
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COMPARISON AND EVALUATION OF FIELD AND LABORATORY TOXICITY TESTS WITH FENVALERATE ON AN ESTUARINE CRUSTACEAN