Altered biologic activities of commercial polychlorinated biphenyl mixtures after microbial reductive dechlorination.
نویسندگان
چکیده
منابع مشابه
Altered biologic activities of commercial polychlorinated biphenyl mixtures after microbial reductive dechlorination.
The reductive dechlorination of polychlorinated biphenyls (PCBs) by anaerobic bacteria has recently been established as an important environmental fate of these compounds. This process removes chlorines directly from the biphenyl ring with replacement by hydrogen, resulting in a product mixture in which the average number of chlorines per biphenyl is reduced. In this study, dechlorination of co...
متن کاملReductive dechlorination of a polychlorinated biphenyl congener and hexachlorobenzene by vitamin B12.
The polychlorinated biphenyl congener 2,3,4,5,6-pentachlorobiphenyl and hexachlorobenzene were reductively dechlorinated in an aqueous biomimetic model system containing vitamin B12. The products of 2,3,4,5,6-pentachlorobiphenyl dechlorination were 2,3,5,6- and 2,3,4,6-tetrachlorobiphenyl. Hexachlorobenzene dechlorinated to pentachlorobenzene and a mixture of 1,2,4,5- and 1,2,3,5-tetrachloroben...
متن کاملPolychlorinated Biphenyl-Induced Alteration of Biologic Parameters
Polychlorinated Biphenyl-Induced Alteration of Biologic Parameters in the Rat. BRUCKNER, J. V., KHANNA, K. L. AND CORNISH, H. H. (1974). Toxicol. Appl. Phurmacol. 2-8, 189-199, Aroclor 1242, a commercial polychlorinated biphenyl (PCB) mixture, was administered ip to rats for 10 weeks. Principal findings included: loss of body weight; hepatic and renal damage, with some animals exhibiting renal ...
متن کاملKinetics of polychlorinated biphenyl dechlorination and growth of dechlorinating microorganisms.
The present study has investigated a correlation between the kinetics of polychlorinated biphenyl (PCB) dechlorination and the growth of dechlorinating microbial populations. Microorganisms were eluted from Aroclor 1248-contaminated St. Lawrence River (NY, USA) sediments and inoculated into clean sediments spiked with Aroclor 1248 at 10 concentrations ranging from 0 to 3.12 micromol/g sediment ...
متن کاملKinetics of the microbial reductive dechlorination of pentachloroaniline.
The microbial reductive dechlorination kinetics of pentachloroaniline (PCA) and less chlorinated anilines (CAs) were investigated with a mixed, fermentative/ methanogenic culture. Batch dechlorination assays were performed with all available CAs at an initial concentration of 3 microM, and an incubation temperature of 22 degrees C. Dechlorination of PCA, two tetrachloroanilines (2,3,4,5- and 2,...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Environmental Health Perspectives
سال: 1998
ISSN: 0091-6765,1552-9924
DOI: 10.1289/ehp.98106s61409