||Chronic Toxicity of Pydraul 50E to Lake Trout.
Mayer, F. L. ;
Woodward, D. F. ;
Adams, W. J. ;
||Environmental Research Lab., Gulf Breeze, FL. ;Fish and Wildlife Service, Jackson, MS. ;ABC Labs., Inc., Columbia, MO.
Water pollution effects(Animals) ;
Hydraulic fluids ;
Dose-response relationships ;
||Some EPA libraries have a fiche copy filed under the call number shown.
||Industrial phosphate esters have been widely used for the past 30 years as plasticizers, hydraulic fluids, and gasoline additives because of their fire resistance and performance. A study by the U.S. Environmental Protection Agency indicated that a significant portion of the annual production of all hydraulic fluid was discharged into the environment as a result of leakage. The purpose of the study was to determine the chronic toxicity of Pydraul 50E, an alkyl-aryl phosphate ester hydraulic fluid, to lake trout (Salvelinus namaycush). Fry (24-days-old) were continuously exposed to 0, 2.6, 5.3, and 16 micrograms/L of Pydraul 50E for 120 days. All fish died in the 16 micrograms/L exposure, and growth was significantly less in the 5.3 micrograms/L exposure. A high incidence of light skin coloration (66%) and cataracts in one or both eyes (92%) also occurred in the 5.3 micrograms/L exposure. Bioconcentration factors for Pydraul 50E ranged from 462 to 5,500. Improved management of hydraulic fluid use is recommended to reduce environmental contamination.
||Pub. in Bulletin of Environmental Contamination and Toxicology, v51 p289-295 1993. Prepared in cooperation with Fish and Wildlife Service, Jackson, MS., and ABC Labs., Inc., Columbia, MO.
|NTIS Title Notes
||Reprint: Chronic Toxicity of Pydraul 50E to Lake Trout.
||57Y; 68D; 71O; 71K
||PC A02/MF A01