| Main Title |
Organic Carbon Partitioning as a Basis for Predicting the Toxicity of Chlorpyrifos in Sediments. |
| Author |
Ankley, G. T. ;
Call, D. J. ;
Cox, J. S. ;
Kahl, M. D. ;
Hoke, R. A. ;
|
| CORP Author |
Environmental Research Lab.-Duluth, MN. ;Wisconsin Univ.-Superior. Lake Superior Research Inst.;Science Applications International Corp., Hackensack, NJ. |
| Publisher |
c1994 |
| Year Published |
1994 |
| Report Number |
EPA/600/J-94/256; |
| Stock Number |
PB94-176153 |
| Additional Subjects |
Sediments ;
Toxicity ;
Pesticides ;
Invertebrates ;
Benthic fauna ;
Midges ;
Pore water ;
Concentration(Composition) ;
Mortality ;
Separation ;
Biological indicators ;
Organic compounds ;
Carbon ;
Water pollution monitoring ;
Assaying ;
Reprints ;
Chlorpyrifos ;
Chironomus tentans ;
SQC(Sediment quality criteria) ;
Bioavailability
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB94-176153 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
8p |
| Abstract |
The objective of the study was to evaluate an organic carbon partitioning model for predicting bioavailability of the organophosphate chlorpyrifos in sediments, in support of the development of a sediment-quality criterion for the pesticide. Initial 10-d water-only toxicity tests were conducted with the midge Chironomus tentans to define the sensitivity of this species to chlorpyrifos. Ten-day toxicity tests with Chironomus tentans were conducted with the spiked sediments under conditions similar to those in the water-only exposure. Based on predicted pore-water concentrations of chlorpyrifos, results of the water-only and sediment tests were in close agreement. Overall, these results suggest that within the range of organic carbon tested in the present study, an equilibrium partitioning model was based on organic carbon is appropriate for predicting the bioavailability of sediment-associated chlorpyrifos to benthic invertebrates. |
| Supplementary Notes |
Pub. in Environmental Toxicology and Chemistry, v13 n4 p621-626 1994. See also PB87-105367 and PB92-231521. Prepared in cooperation with Wisconsin Univ.-Superior. Lake Superior Research Inst. Sponsored by Science Applications International Corp., Hackensack, NJ. |
| Highlights Notes |
%AUT:P. A. /Kosian |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Organic Carbon Partitioning as a Basis for Predicting the Toxicity of Chlorpyrifos in Sediments. |
| Category Codes |
68D; 68E; 48E; 57H |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/03 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
420325044 |
| Origin |
NTIS |
| Type |
CAT |
