Photodegradation of Polybromobiphenyls (PBB)

L. Octavio Ruzo, Göran Sundström, Otto Hutzinger, Stephen Safe

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


A series of polybrominated biphenyls (PBB) ranging from 2 to 8 atoms in bromine content was studied in regard to their ultraviolet properties and photochemical reactivity. The compounds containing bromine atoms in positions ortho to the biphenyl linkage were found to have greater ease of debromination in hexane and methanol solutions at wavelengths >290 nm. Debromination at the ortho positions was preferred in all cases. No substitution products were detected in methanol or water-acetonitrile solutions. The sensitizing effect of benzophenone and the slight quenching observed in air-saturated solutions suggest a triplet excited state intermediate.

Original languageEnglish (US)
Pages (from-to)1062-1065
Number of pages4
JournalJournal of Agricultural and Food Chemistry
Issue number5
StatePublished - Sep 1 1976

ASJC Scopus subject areas

  • Chemistry(all)
  • Agricultural and Biological Sciences(all)


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