US EPA

2195789 

Journal Article 

Correction of PREVIEWS 99289330. Influence of incubation temperature on the microbial reductive dechlorination of 2,3,4,6-tetrachlorobiphenyl in two freshwater sediments. Correction of abstract. Erratum published in Applied Environmental Microbiology Vol. 63. Iss. 2. 1997. p. 815 

Wu, Q; Bedard, DL; Wiegel, J 

1996 

Yes 

Applied and Environmental Microbiology
ISSN: 0099-2240
EISSN: 1098-5336 

BIOSIS/97/19816 

62 

11 

4174-4179 

English 

is erratum to 2169206 Influence of incubation temperature on the microbial reductive dechlorination of 2,3,4,6-tetrachlorobiphenyl in two freshwater sediments

BIOSIS COPYRIGHT: BIOL ABS. We studied the impact of incubation temperatures on the dechlorination of 2,3,4,6-tetrachlorobiphenyl (2346-CB) in two sediments from different climates: polychlorinated biphenyl (PCB)-free sediment from Sandy Creek Nature Center Pond (SCNC) in Athens, Ga., and PCB-contaminated sediment from Woods Pond (WP) in Lenox, Mass. Sediment slurries were incubated anaerobically with 350 muM 2346-CB for 1 year at temperatures ranging from 4 to 66? C. Most of the 2346-CB was dechlorinated between 12 and 34? C in both sediments and, unexpectedly, between 50 and 60?C in WP sediment. This is the first report of PCB dechlorination at thermobiotic temperatures. The data reveal profound differences in dechlorination rate, extent, and products as a function of sediment and temperature. The highest observed rate of dechlorination of 2346-CB to trichlorobiphenyls occurred at 30? C in both sediments, but the rate was higher for WP than for SCNC sediment (46 versus 16 mumol liter-1 day-1). F