Arochlor®

Arochlors 1016,1232,1248, and 1260. Arochlors have been analyzed under these GC conditions at the 50 ppm Ic d... 

Kubatova A, J Herman, TS Sleekier, M de Veij, DJ Miller, EB Klunder, CM Wai, SB Hawthorne (2003) Sub-critical (hot/liquid) water dechlorination of PCBs (Arochlor 1254) with metal additives and in waste paint. Environ Sci Technol 37 5757-5762. 

Sediment samples from a contaminated site were spiked with Arochlor 1242 and incubated at 4°C for several months (Williams and May 1997). Degradation by aerobic organisms in the upper layers of the sediment—but not in those at >15 mm from the surface—occurred with the selective production of di- and trichlorobiphenyls. Some congeners, including... 

Bedard DL, H van Dort, KA Deweerd (1998) Brominated biphenyls prime extensive microbial reductive deha-logenation of Arochlor 1260 in Housatonic River sediment. Appl Environ Microbiol 64 1786-1795. 

Wu Q, DL Bedard, J Wiegel (1997b) Temperature determines the pattern of anaerobic microbial dechlorination of Arochlor 1260 primed by 2,3,4,6-tetrachlorobiphenyl in Woods Pond sediment. Appl Environ Microbiol 63 4818-4825. 

Bedard DL, JJ Bailey, BE Reiss, G van S Jerzak (2006) Development and characterization of stable sediment-free anaerobic bacterial enrichment cnltnres that dechlorinate Arochlor 1260. Appl Environ Microbiol 72 2460-2470. 

Bedard DL, RE Wagner, Ml Brennan, ML Haberl, RJ May, JF Brown Jr (1987b) Extensive degradation of Arochlors and environmentally transformed polychlorinated biphenyls by Alcaligenes eutrophus H 850. Appl Environ Microbiol 53 1094-1102. 

An anaerobic bacterial enrichment cnltnre was used to examine the dechlorination of 2,3,4,5-tetrachlorobiphenyl that prodnced 2,3,5-trichlorobiphenyl exclusively. Although there was no alteration in the valnes of 5 C, compound-specific analysis of Arochlor 1268 showed that there was a trend for decreasing C abundance with increasing content of chlorine. This is consistent with dechlorination of the congeners with more chlorine substituents. 

It was snggested that rednctive dechlorination of PCBs wonld produce congeners with more depleted valnes of compared with unweathered Arochlors (Drenzer et al. 2001). 

Jarman WM, A Hilkert, CE Bacon, JW Collister, K Ballschmiter, RW Risebrough (1998) Compound-specific carbon isotopic analysis of Arochlors, Clophens, Kanechlors, and Phenoclors. Environ Sci Technol 32 833-836. 

Experiments nsing Pseudomonas testosteroni strain B-356 in microcosm systems revealed the necessity of adding biphenyl to promote degradation of the tetrachlorinated congeners of Arochlor 1242, and the effectiveness of repeated inoculation (Barriault and Sylvestre 1993). 

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