Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Development of a Selective Algaecide to Control Nuisance Algal Growth.
Author Prow, Bernard L. ; McIlhenn, William F. ;
CORP Author Dow Chemical Co., Freeport, Tex. Texas Div.
Year Published 1971
Report Number DI-14-12-814; EPA-WQO-1412814; 1412814-04-71;
Stock Number PB-218 273
Additional Subjects ( Algicides ; Bioassay) ; Pesticides ; Toxicology ;
Library Call Number Additional Info Location Last
NTIS  PB-218 273 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 53p
The objective of this project was to discover a compound which would effectively and economically control the growth of nuisance species of bluegreen algae and would also exert a minimum impact on the more desirable aquatic life. Acomputer search was made of some 80,000 compounds and thirty-three were selected for testing. Those compounds which gave at least 80% control at 2.0 ppm against both Microcystis aeruginosa and Anabaena flos-aquae, the specified target species of blue-green algae, were selected for secondary screening tests at 1.0,0.5 and 0.1 ppm. Of the thirty-three compounds tested, four were selected for further research in the long-range algaecidal development program. In addition, an organism, Ochromonas ovalis, was discovered whose phagocytic action against Microcystis sp. was enhanced by compounds having algaecidal properties. (Author Modified Abstract)