Record Display for the EPA National Library Catalog


Main Title Comparison of Microbial Bioassays for the Detection of Aquatic Toxicants.
Author McFeters, G. A. ; Bond, P. J. ; Olson, S. B. ; Tchan, Y. T. ;
CORP Author Montana State Univ., Bozeman. Dept. of Microbiology. ;Sydney Univ. (Australia).;Corvallis Environmental Research Lab., OR.
Year Published 1983
Report Number EPA-R-807256; EPA/600/J-83/319;
Stock Number PB86-100369
Additional Subjects Bioassays ; Microorganisms ; Water pollution ; Monitors ; Aquatic animals ; Herbicides ; Concentration(Composition) ; Fishes ; Bacteria ; Algae ; Toxicity ; Comparison ; Reprints ; Toxic substances ; Water pollution effects(Animals)
Library Call Number Additional Info Location Last
NTIS  PB86-100369 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 7p
The toxicity of 35 test chemicals was analyzed using two microbial bioassay systems. The commercially available Microtox Toxicity Analyzer System and the two-organism procedure of Tchan were used to determine the concentration of test chemicals resulting in a 50 percent reduction in response EC(sub 50). Both of the test employed a luminescent bacterium while the procedure of Tchan also utilized a alga. Results from the two microbial tests were compared with available data obtained with fish toxicity bioassays and with each other. As a notable exception, photosynthesis-inhibiting herbicides were detected at remarkably lower concentrations with the procedure of Tchan than any of the other bioassays. Potential applications for these tests are discussed.