Record Display for the EPA National Library Catalog


Main Title Absorption Dynamics of Organic Chemical Transport across Trout Gills as Related to Octanol-Water Partition Coefficient.
Author McKim, J. ; Schmieder, P. ; Veith, G. ;
CORP Author Environmental Research Lab.-Duluth, MN.
Year Published 1985
Report Number EPA/600/J-85/033;
Stock Number PB85-198315
Additional Subjects Trout ; Organic compounds ; Adsorption ; Insecticides ; Water pollution ; Chlorine aliphatic compounds ; Chlorine organic compounds ; Monitoring ; Accuracy ; Extraction ; Isotopic labeling ; Reprints ; Salmo gairdneri ; Ethyl formate ; Mirex ; Kepone ; Carbon 14 ; Gills
Library Call Number Additional Info Location Last
NTIS  PB85-198315 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 12p
An in vivo fish preparation was used that allowed a direct measure of the transport rates of 14 different organic chemicals across the gills of rainbow trout (Salmo gairdneri). The chemicals, all 14C labeled, were selected from five classes, encompassing a range of octanol-water partition coefficient (log P) values, from 0.23 (ethyl formate) to 7.5 (mirex). The uptake efficiency (extraction efficiency) of each chemical was determined by monitoring the inspired and expired water of trout exposed to each chemical over an exposure period of 1 to 6 hr. The mean gill extraction efficiency for all chemicals tested varied from a low of 7% to a high of 60%. These studies support the passive diffusion model for the uptake of organics at the gill-water interface.