Editing Polychlorinated biphenyl (section)

===Microbial===
The use of [[microorganism]]s to degrade PCBs from contaminated sites, relying on multiple microorganisms' co-metabolism, is known as [[bioremediation of polychlorinated biphenyl]]. Some micro-organisms [[biodegradation|degrade]] PCBs by reducing the C-Cl bonds. Microbial dechlorination tends to be rather slow-acting in comparison to other methods. Enzymes extracted from microbes can show PCB activity. In 2005, ''[[Shewanella oneidensis]]'' biodegraded a high percentage of PCBs in soil samples.<ref>{{cite journal | vauthors = De Windt W, Aelterman P, Verstraete W | title = Bioreductive deposition of palladium (0) nanoparticles on Shewanella oneidensis with catalytic activity towards reductive dechlorination of polychlorinated biphenyls | journal = Environmental Microbiology | volume = 7 | issue = 3 | pages = 314–325 | date = March 2005 | pmid = 15683392 | doi = 10.1111/j.1462-2920.2005.00696.x | bibcode = 2005EnvMi...7..314W }}</ref> A low voltage current can stimulate the microbial degradation of PCBs.<ref>{{cite journal | vauthors = Chun CL, Payne RB, Sowers KR, May HD | title = Electrical stimulation of microbial PCB degradation in sediment | journal = Water Research | volume = 47 | issue = 1 | pages = 141–152 | date = January 2013 | pmid = 23123087 | pmc = 3508379 | doi = 10.1016/j.watres.2012.09.038 | bibcode = 2013WatRe..47..141C }}</ref>