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Levels and profiles of Dechlorane Plus in a major E-waste dismantling area in China.
|Title||Levels and profiles of Dechlorane Plus in a major E-waste dismantling area in China.|
|Publication Type||Journal Article|
|Year of Publication||2013|
|Authors||Xiao K, Wang P, Zhang H, Shang H, Li Y, Li X, Ren D, Chen W, Zhang Q|
|Journal||Environmental geochemistry and health|
|Date Published||2013 Oct|
Dechlorane Plus (DP) is a high-production volume, chlorinated flame retardant comprising two major isomers, syn- and anti-DP. In this study, levels of DP were measured in soil and earthworm samples in farmland from a typical E-waste dismantling area in China. The concentrations of total DP ranged from 0.17 to 1,990 ng g(-1) dw in soil samples and 3.43 to 89.2 ng g(-1) lw in earthworm samples. Higher DP levels were found in some main E-waste dismantling sites than those in other sites. The ratios of anti-DP to total DP (f anti) ranged from 0.57 to 0.80 in soil samples and 0.47 to 0.81 in earthworm samples, respectively. The f anti in most samples in this study was in the range of the reported technical DP values. These results showed that improper E-waste dismantling activities could result in the emission of DP. Most earthworm samples showed very low BSAFs (biota-to-soil accumulation factors) for total DP. The values of BSAF were in the range of 0.0007-1.85, with an average value of 0.23. This study presents the first report of the DP in earthworms, which would be useful for ecological risk assessment of DP in terrestrial ecosystem.
|Alternate Journal||Environ Geochem Health|