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Effect of sewage-sludge application on concentrations of higher-brominated diphenyl ethers in soils and earthworms
Umeå University, Faculty of Science and Technology, Chemistry.
Umeå University, Faculty of Science and Technology, Chemistry.
2005 (English)In: ENVIRONMENTAL SCIENCE & TECHNOLOGY, ISSN 0013-936X, Vol. 39, no 23, 9064-70 p.Article in journal (Refereed) Published
Abstract [en]

Polybrominated diphenyl others (PBDEs), including octa-decaBDEs, were found in soil and earthworm samples collected in 2000 from three research stations (reference plots and sewage-sludge-a mended plots) and two farms (reference and amended/flooded soils) in Sweden Sewage-sludge amendment at the research stations increased concentrations of all BDE congeners 2- to 13-fold, with the highest increases for BDE-209. Concentrations 100- to 1000-fold higher were seen in contaminated soils at both farms. BDE-209 was the predominant congener in all soils. Sigma PBDE concentrations in worms ranged from 3.1 to 38 000 ng/g lipid weight and were correlated to soil concentrations, including the octa-decaBDEs. Biota-soil accumulation factors declined in the following order: TeBDE > PeBDE > HxBDE > OcBDE > NoBDE > DeBDE, and ranged from 0.3 to 2 for the octa-decaBDEs. Thus, higherbrominated PBDEs, including BDE-209, are bioavailable from soils and accumulate in earthworms, presenting an exposure pathway into the terrestrial food web. High levels found at one farm 20 years after the last use of PBDEs indicate high persistence of PBDEs in soils, including BDE-209. No evidence of photolytic debromination of BDE-209 in soils was seen.

Place, publisher, year, edition, pages
2005. Vol. 39, no 23, 9064-70 p.
Keyword [en]
POLYCYCLIC AROMATIC-HYDROCARBONS, POLYCHLORINATED-BIPHENYLS PCBS, WATER PARTITION-COEFFICIENTS, DIBENZO-P-DIOXINS, DECABROMODIPHENYL ETHER, FLAME RETARDANTS, LUMBRICULUS-VARIEGATUS, EISENIA-ANDREI, BIOAVAILABILITY, SEDIMENT
Identifiers
URN: urn:nbn:se:umu:diva-13248DOI: doi:10.1021/es051190mOAI: oai:DiVA.org:umu-13248DiVA: diva2:152919
Available from: 2007-05-07 Created: 2007-05-07 Last updated: 2011-01-12Bibliographically approved

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Tysklind, Mats

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