Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Acute Toxicity of Two Generic Drilling Fluids and Six Additives, Alone and Combined, to Mysids ('Mysidopsis bahia').
Author Parrish, P. R. ; Macauley, J. M. ; Montgomery, R. M. ;
CORP Author Environmental Research Lab., Gulf Breeze, FL. ;Technical Resources, Inc., Gulf Breeze, FL.
Year Published 1988
Report Number EPA/600/D-88/004;
Stock Number PB88-154398
Additional Subjects Additives ; Drilling fluids ; Toxicity ; Crustacae ; Water pollution ; Mixtures ; Shrimps ; Mathematical models ; Water base muds ; Tests ; Mysidopsis bahia ; Mysids ; LC 50
Library Call Number Additional Info Location Last
NTIS  PB88-154398 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 20p
Toxicity tests were conducted with two laboratory-prepared generic drilling fluids (muds) and six commonly used drilling fluid additives to determine their toxicity, alone and combined, to mysids (Mysidopsis bahia). In 25 tests, the acute toxicity of combinations of one, two, or three of the drilling fluid additives mixed with either drilling fluid was less than the toxicity predicted from the empirical 96-h LC50s for drilling fluid additive(s) and/or drilling fluid alone; the observed 96-h LC50s of the mixtures were from 1.3 to 23.6 times the values predicted from the presumption of additive toxicity.