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RECORD NUMBER: 12 OF 28

Main Title Examination of Dechlorination Processes and Pathways in New Bedford Harbor Sediments.
Author Lake, J. L. ; Pruell, R. J. ; Osterman, F. A. ;
CORP Author Environmental Research Lab., Narragansett, RI.
Publisher 1992
Year Published 1992
Report Number EPA/600/J-94/001;
Stock Number PB94-140795
Additional Subjects Dechlorination ; Anaerobic bacteria ; Aquatic microbiology ; Bottom sediments ; Biodeterioration ; Chlorinated aromatic hydrocarbons ; New Bedford Harbor ; Black Rock Harbor ; Water pollution sources ; Industrial wastes ; Toxicity ; Capacitors ; Polychlorinated biphenyls ; Reprints ; PCBs(Polychlorinated biphenyls) ; Aroclor 1242 ; Aroclor 1254
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Library Call Number Additional Info Location Last
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Status
NTIS  PB94-140795 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 18p
Abstract
Estuarine sediments from upper New Bedford Harbor, Massachusetts, which were heavily contaminated with polychlorinated biphenyls (PCBs), showed considerable compositional alterations of PCB residues relative to mixtures of Aroclor 1242 and 1254 standards, and PCB distributions present in sediments from lower New Bedford Harbor and Black Rock Harbor, Connecticut. The compositional alterations, which presumably resulted from reductive dechlorinations by bacteria, became more extensive with increasing PCB concentration and decreasing distance from the suspected PCB source, an electrical capacitor manufacturing plant. The dechlorination processes found may decrease the potential toxicity and bioaccumulation potential of the PCB residues in these sediments.