Biodegradation kinetics of selected brominated flame retardants in aerobic and anaerobic soil
2010 (English)In: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 158, no 6, 2235-2240 p.Article in journal (Refereed) Published
The purpose of the present study was to investigate the biodegradation kinetics in aerobic and anaerobic soil of the following brominated flame retardants: 2,4,4'-tribromodiphenyl ether (BDE 28), decabromodiphenyl ether (BDE 209), tetrabromobisphenol A (TBBPA), 1,2-dibromo-4-(1,2-dibromoethyl)cyclohexane (TBECH), 2,4,6-tribromophenol (246BrPh), and hexabromobenzene (HxBrBz). For comparison, the biodegradation of the chlorinated compounds 2,4,4'-trichlorodiphenyl ether (CDE 28), 2,4,6-trichlorophenol (246ClPh), hexachlorobenzene (HxClBz), and 2,2',4,4',5,5'-hexachlorobiphenyl (PCB 153) was also assessed. In aerobic soil, BDE 209 showed no significant degradation during the test period, but concentrations of the other BFRs declined, with half-lives decreasing in the following order: BDE 28 > TBBPA > TBECH > HxBrBz > 246BrPh. Declines in almost the same order were observed in anaerobic soil: BDE 28, BDE 209 > TBBPA > HxBrBz > TBECH >246BrPh. Intra- and extrapolated half-lives in soil of tested brominated flame retardants ranged from 7 days for 2,4,6-tribromorophenol to >400 days for decabromodiphenyl ether.
Place, publisher, year, edition, pages
Elsevier, 2010. Vol. 158, no 6, 2235-2240 p.
brominated flame retardants, persistence, soil, temperature, sludge
IdentifiersURN: urn:nbn:se:umu:diva-33266DOI: 10.1016/j.envpol.2010.02.010ISI: 000278343000032PubMedID: 20227803OAI: oai:DiVA.org:umu-33266DiVA: diva2:311146