Formation of cyclohexyl-PCBs upon UV irradiation of PCBs in cyclohexane
- Armand-Frappier Institute, Laval, Quebec (Canada)
Photochemical degradation is a very important degradation pathway for polychlorinated biphenyls (PCBs) in the environment. Numerous studies have demonstrated that the main decomposition mechanism is reductive dechlorination. Some authors also observed the formation of hydroxy and alkoxy-PCB derivatives when irradiation was performed in aqueous or alcoholic solvents. In a previous publication formation of cyclohexyl-PCBs was observed by GC-MS upon sunlight and UV irradiation of Aroclor 1254 in cyclohexane. Because of the highly hydrophobic nature of PCBs, photochemical formation of alkylated PCB derivatives might be environmentally important. The objectives of this study is to elucidate the photochemical formation of these cyclohexyl-PCBs using pure PCB congeners. 11 refs., 2 figs., 1 tab.
- OSTI ID:
- 35671
- Journal Information:
- Bulletin of Environmental Contamination and Toxicology, Journal Name: Bulletin of Environmental Contamination and Toxicology Journal Issue: 4 Vol. 49; ISSN 0007-4861; ISSN BECTA6
- Country of Publication:
- United States
- Language:
- English
Similar Records
Degradation pathways of PCB upon gamma irradiation
Extensive degradation of aroclors and environmentally transformed polychlorinated biphenyls by Alcaligenes eutrophus H850