PBDEs in European background soils: Levels and factors controlling their distribution

被引:232
作者
Hassanin, A
Breivik, K
Meijer, SN
Steinnes, E
Thomas, GO
Jones, KC [1 ]
机构
[1] Univ Lancaster, Inst Environm & Nat Sci, Dept Environm Sci, Lancaster LA1 4YQ, England
[2] Norwegian Inst Air Res, NILU, NO-2027 Kjeller, Norway
[3] Norwegian Univ Sci & Technol, Dept Chem, NO-7491 Trondheim, Norway
关键词
D O I
10.1021/es035008y
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Surface soils (0-5 cm) from remote/rural woodland (coniferous and deciduous) and grassland locations on a latitudinal transect through the United Kingdom and Norway were analyzed for polybrominated diphenyl ethers (PBDEs). Concentrations ranged between 65 and 12 000 Sigma(ALL)PBDE ng kg(-1) dry weight. PBDE-47, -99, -100, -153, and -154-the major constituents of the penta-BDE technical product-dominated the average congener pattern of the soils. Indeed, the average congener composition and distribution measured in these European background soils closely matched that reported in the technical penta-BDE product. This is interpreted as evidence that transfer of the congeners present in penta-BDE-treated products from source-air-soil occurs with broadly similar efficiency, perhaps because there has been little weathering/ degradation/alteration of the congener source pattern by processes operating during atmospheric transport or within the soil itself. BDE-183, a marker for the octa-BDE mix, was detected at concentrations ranging from < 9 to 7000 (median similar to50 ng kg(-1)). In most soils, it made a minor contribution to the Sigma(ALL)PBDE concentration, but it was a major component in some samples from northern England. Forest soils tended to have higher concentrations than grasslands. Underlying the average soil composition, some differences in the congener pattern were observed. Notably, there was evidence of latitudinal fractionation, with the relative contribution of PBDE-47 and lighter congeners to the SigmaPBDE increasing northwards (with increasing distance from source areas), while the proportion of PBDE-99 and heavier congeners decreased. Plots of concentration against percentage soil organic matter had different slopes for different congeners. Higher slopes were generally seen for the lighter PBDEs (e.g., PBDE-47), indicating that they have undergone some air-surface exchange (hopping), while the slopes of heavier congeners (e.g., PBDE-153) were close to zero, indicating that they are retained more effectively by soils after deposition.
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页码:738 / 745
页数:8
相关论文
共 40 条
[1]   An overview of commercially used brominated flame retardants, their applications, their use patterns in different countries/regions and possible modes of release [J].
Alaee, M ;
Arias, P ;
Sjödin, A ;
Bergman, Å .
ENVIRONMENT INTERNATIONAL, 2003, 29 (06) :683-689
[2]   Understanding levels and trends of BDE-47 in the UK and North America: an assessment of principal reservoirs and source inputs [J].
Alcock, RE ;
Sweetman, AJ ;
Prevedouros, K ;
Jones, KC .
ENVIRONMENT INTERNATIONAL, 2003, 29 (06) :691-698
[3]  
[Anonymous], 1998, PROT PERS ORG POLL 1
[4]   Towards a global historical emission inventory for selected PCB congeners - a mass balance approach 2. Emissions [J].
Breivik, K ;
Sweetman, A ;
Pacyna, JM ;
Jones, KC .
SCIENCE OF THE TOTAL ENVIRONMENT, 2002, 290 (1-3) :199-224
[5]   Towards a global historical emission inventory for selected PCB congeners - a mass balance approach 1. Global production and consumption [J].
Breivik, K ;
Sweetman, A ;
Pacyna, JM ;
Jones, KC .
SCIENCE OF THE TOTAL ENVIRONMENT, 2002, 290 (1-3) :181-198
[6]  
*BSEF, 2000, BROM SCI ENV FORM 28
[7]  
*COMM EUR COMM, 2000, 32534819 CAS COMM EU
[8]  
*COMM EUR COMM, 2000, 2510842 EINECS COMM
[9]   An overview of brominated flame retardants in the environment [J].
de Wit, CA .
CHEMOSPHERE, 2002, 46 (05) :583-624
[10]  
*DETR, 2000, RISK RED STRAT AN AD