Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Increasing the Usefulness of Acute Toxicity Tests.
Author Stephan, C. E. ;
CORP Author Environmental Research Lab.-Duluth, MN.
Year Published 1982
Report Number EPA-600/D-82-362;
Stock Number PB83-151712
Additional Subjects Toxicology ; Water analysis ; Aquatic animals ; Bioassay ; Tests ; Hazards ; Assessments ; Reprints ; Water pollution effects(Animals)
Library Call Number Additional Info Location Last
NTIS  PB83-151712 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 15p
The conceptually and practically simple acute toxicity test provides information that is useful in the protection of aquatic life from pollution. Standardization increases the usefulness of routine acute tests by increasing their quality and comparability and allowing the study of various aspects of acute toxicity. For example, available data show that for certain materials some species of aquatic animals are at least 5,000 times more acutely sensitive than other species, whereas for other materials the range of acute sensitivity is less than a factor of 50. Various theoretical interpretations of the relationship of toxicity to time within a test have been proposed to improve the usefulness of the acute test, but such theories have not been supported by adequate pertinent data. The usefulness of routine acute toxicity tests can be increased, however, by basing the results not on one effect or another but on a combination of all severe adverse effects, such as death, immobilization, and loss of equilibrium.