Main Title |
Comparative Toxicity of Offshore and Oil-Added Drilling Muds to Larvae of the Grass Shrimp 'Palaemonetes intermedius'. |
Author |
Conklin, P. J. ;
Rao, K. R. ;
|
CORP Author |
University of West Florida, Pensacola. Dept. of Biology.;Environmental Research Lab., Gulf Breeze, FL. |
Year Published |
1984 |
Report Number |
EPA-R-807417; EPA/600/J-84/189; |
Stock Number |
PB85-161537 |
Additional Subjects |
Toxicology ;
Drilling fluids ;
Shrimps ;
Larvae ;
Lethal concentration ;
Oils ;
Reprints ;
Water pollution effects(Animals) ;
Palaemonetes intermedius
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB85-161537 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
8p |
Abstract |
Offshore drilling fluids (muds) varied widely in their toxicity to grass shrimp (Palaemonetes intermedius) larvae. The 96-hr LC50S for the eleven drilling muds tested ranged from 142 to >100,000 ppm (microliters/L). There was a significant correlation between oil content of the drilling muds and their toxicity. Furthermore, addition of diesel oil (No. 2 fuel oil) or mineral oil to an offshore drilling mud have a low oil content or to an oil-free synthetic drilling mud led to a marked increase in the toxicity of these muds. Thus, much of the toxicity of the offshore drilling muds tested can be attributable to the oil content. |