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Effect of sewage-sludge application on concentrations of higher-brominated diphenyl ethers in soils and earthworms

Sellström, Ulla (author)
Department of Applied Environmental Science, Stockholm University, SE-106 91 Stockholm, Sweden, and Environmental Chemistry, Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden
de Wit, Cynthia A. (author)
Department of Applied Environmental Science, Stockholm University, SE-106 91 Stockholm, Sweden, and Environmental Chemistry, Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden
Lundgren, Nadja (author)
Umeå universitet,Kemiska institutionen,Department of Applied Environmental Science, Stockholm University, SE-106 91 Stockholm, Sweden, and Environmental Chemistry, Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden
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Tysklind, Mats (author)
Umeå universitet,Kemiska institutionen,Department of Applied Environmental Science, Stockholm University, SE-106 91 Stockholm, Sweden, and Environmental Chemistry, Department of Chemistry, Umeå University, SE-901 87 Umeå, Sweden
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 (creator_code:org_t)
2005-11-03
2005
English.
In: ENVIRONMENTAL SCIENCE & TECHNOLOGY. - : American Chemical Society (ACS). - 0013-936X .- 1520-5851. ; 39:23, s. 9064-70
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • 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.

Subject headings

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)

Keyword

POLYCYCLIC AROMATIC-HYDROCARBONS
POLYCHLORINATED-BIPHENYLS PCBS
WATER PARTITION-COEFFICIENTS
DIBENZO-P-DIOXINS
DECABROMODIPHENYL ETHER
FLAME RETARDANTS
LUMBRICULUS-VARIEGATUS
EISENIA-ANDREI
BIOAVAILABILITY
SEDIMENT

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