Record Display for the EPA National Library Catalog
RECORD NUMBER: 19 OF 22
|OLS Field Name||OLS Field Data|
|Main Title||The precision of the ASTM bioconcentration test /|
|Author||Kosian, Patricia ; Lemke, Armond ; Studders, Karen ; Veith, Gilman ;|
|CORP Author||Environmental Research Lab.-Duluth, MN.|
|Publisher||U.S. Environmental Protection Agency, Research and Development, Environmental Research Laboratory ; Center for Environmental Research Information [distributor],|
|Report Number||EPA 600-3-81-022|
|Subjects||Chemicals--Testing. ; Fishes--Effect of water pollution on.|
|Additional Subjects||Toxicology ; Residues ; Chlorine aromatic compounds ; Precision ; Concentration(Composition) ; Minnows ; Fishes ; Exposure ; Bioaccumulation ; ASTM analysis ; Depuration ; Analytical methods ; Bioconcentration test ; Benzene/hexachloro ; Benzene/trichloro ; Benzene/dichloroethylidene-bis(chloro) ; DDE insecticide ; Fathead minnows|
|Collation||20 pages : illustrations ; 28 cm|
The ASTM method for measuring the bioconcentration factor (BCF) of chemicals was evaluated using 1,2,4-trichlorobenzene (TCB), hexachlorobenzene (HCB), and p,p'-DDE (DDE). Four replicate, 28-day exposures of the chemicals to fathead minnows were used to determine the precision of the test method. Using the 28-day values, the mean BCF for TCB, HCB, and DDE were 1,700 (+ or - 70), 35,000 (+ or - 3,300), and 50,000 (+ or - 4,800), respectively. The results showed that steady-state residues are not attained for highly bioaccumulative chemicals in the 28-day exposure, and the calculation of the BCF by dividing the 28 day residues by the mean water concentration is inadequate. Two alternate methods of calculating the BCF are discussed.
At head of title: research and development. "PB81-168932." "February 1981." "EPA-600/3-81-022." Photocopy.