||An ecological study of hexachlorobenzene (HCB) /
Laseter, John L. ;
Bartell, Clelmer K. ;
Laska, Anthony L. ;
Holmquist, Doris G. ;
Condie., Donald B.
||New Orleans Univ., La. Dept. of Biological Sciences.;Environmental Protection Agency, Washington, D.C. Office of Toxic Substances.
|| U.S. Environmental Agency. Office of Toxic Substances,
Hexachlorobenzene--Environmental aspects ;
Aquatic animals--Effect of water pollution on
Environmental surveys ;
Water pollution ;
Aquatic animals ;
Field tests ;
Chlorine aromatic compounds ;
Water pollution effects(Animals) ;
Laboratory tests ;
||Some EPA libraries have a fiche copy filed under the call number shown.
||viii, 62 pages : illustrations ; 28 cm
Hexachlorobenzene (HCB) has been found in the environment in southeastern Louisiana in addition to other parts of the world. In this region it is a byproduct of the petro-chemical industry. HCB is a fungicide and has been found to accumulate in fatty tissue of wild and domestic animals. It has had toxic effects upon humans. A number of cases of porphyria cutanea tarda were traced to ingestion of treated grain. In this study, soil, water and organism samples were collected periodically in 1974 and 1975 from sites in southeastern Louisiana, with emphasis along the Mississippi River and an industrial region of known contamination of HCB near Geismar, Louisiana. Maximum HCB concentrations in water from the two areas were 90.3 and 74.9 microgram/l (ppb). Maximum HCB concentrations in soil from the two areas were 874 and 53,130 microgram/Kg (ppb). Laboratory experiments with the compound included acute toxicity studies in aquatic systems and through injection in fish and crayfish. Accumulation and depuration rates were determined and observations made with histological slides of tissue.
EPA 560/6-76-009. EPA Contract No. 68-02-2689. Microfiche.