Abstract
Tree bark was used as the passive air sampler to evaluate polychlorinated biphenyl (PCB) and polybrominated diphenyl ether (PBDE) pollution and possible sources in Southern Jiangsu. The concentrations of PCBs and Σ7PBDEs were in the range of 0.58–5.19 ng/g dry weight (dw; mean 1.79 ng/g dw) and 17.9–243 pg/g dw (mean 74.7 pg/g dw), respectively. Tri-PCBs were the major PCB homologs, and technical PCB product Ar1242 was identified as the main source. BDE209 concentrations (4.29–456 ng/g dw) were relatively high, indicating that BDE209 pollution was serious in this region. The deca-BDE commercial mixture was the predominant commercial PBDE product used in this region. A good correlation was found between tree bark and polyurethane foam (PUF) disks in Σ6PCB monitoring, suggesting that both of them respond well to the gas-phase PCB monitoring.
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This research was supported by the National Basic Research Program of China (No. 2009CB421602) and the Commonweal Program of Environment Protection Department of China (No. 201309030).
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Fig. S1
Map of the sampling sites in the Southern Jiangsu. (DOC 209 kb)
Fig. S2
Distribution of Σ7PCBind and Σ32PCBs (ng/g dw) in camphor tree bark from Southern Jiangsu (DOC 33 kb)
Fig. S3
Distribution of Σ7PBDEs (pg/g dw) and BDE209 (ng/g dw) in camphor tree bark from Southern Jiangsu (DOC 30 kb)
Table S1
Detailed information about tree bark samples (DOC 74 kb)
Table S2
Summary of PCBs concentrations in camphor tree bark from Southern Jiangsu (pg/g dw) (DOC 40 kb)
Table S3
Comparison of PCBs concentrations in tree bark of different regions (ng/g dw) (DOC 33 kb)
Table S4
Summary of PBDEs concentrations in camphor tree bark from Southern Jiangsu (pg/g dw) (DOC 36 kb)
Table S5
Comparison of PBDEs concentrations in tree bark of different regions (ng/g dw) (DOC 37 kb)
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Zhou, L., Dong, L., Huang, YR. et al. Tree bark as a biomonitor for the determination of polychlorinated biphenyls and polybrominated diphenyl ethers from Southern Jiangsu, China: levels, distribution, and possible sources. Environ Monit Assess 187, 603 (2015). https://doi.org/10.1007/s10661-015-4789-7
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DOI: https://doi.org/10.1007/s10661-015-4789-7