Polychlorinated biphenyls (PCBs) and polybrominated biphenyl ethers (PBDEs) in environmental samples from Ny-Ålesund and London Island, Svalbard, the Arctic
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Date
2015
Journal Title
Journal ISSN
Volume Title
Publisher
Chemosphere
Abstract
Polychlorinated biphenyls (PCBs) and polybrominated biphenyl ethers (PBDEs) were determined in environmental
samples collected from Ny-Ålesund and London Island, Svalbard, the Arctic. Total PCB concentrations
(P25PCBs) varied from 0.57 to 2.52 ng g 1 dry weight (dw) in soil, 0.30 to 1.16 ng g 1 dw in
plants and 0.56 to 0.98 ng g 1 dw in reindeer dung. The non-Aroclor congener of CB-11 was predominant
in most samples compared to other congeners, accounting for 16.0 ± 9.8% to theP25PCBs. TheP13PBDEs
concentrations were 1.7–416, 36.7–495 and 28.1–104 pg g 1 dw in soil, plants and reindeer dung, respectively.
The signature of enantioselective biotransformation was observed in all samples for chiral CB-95,
whereas in parts of samples for other chiral PCBs. Bioaccumulation factors (BAFs) in six plant species varied
within individual contaminant congeners and plant species, with BAFs less than 1 for PPCBs and
higher than 1 forPPBDEs. BAF values decreased with increasing soil concentrations, suggesting that high
background levels in soil restricted the accumulation of these contaminants by plants.
Description
Keywords
PCBs, PBDEs, Soil, Plants, Arctic
Citation
Zhu, C., Li, Y., Wang, P., Chen, Z., Ren, D., Ssebugere, P., ... & Jiang, G. (2015). Polychlorinated biphenyls (PCBs) and polybrominated biphenyl ethers (PBDEs) in environmental samples from Ny-Ålesund and London Island, Svalbard, the Arctic. Chemosphere, 126, 40-46. http://dx.doi.org/10.1016/j.chemosphere.2015.01.043