Spatial distribution of polychlorinated biphenyls (PCBs) and polybrominated biphenyl ethers (PBDEs) in an e-waste dismantling region in Southeast China: Use of apple snail (Ampullariidae) as a bioindicator.
Fengjiang is a large e-waste dismantling site located in southeast China. In this paper, apple snail and soil samples were collected from this e-waste dismantling site and 25 vicinal towns to investigate the contamination status, spatial distributions and congener patterns of polychlorinated biphenyls (PCBs) and polybrominated biphenyl ethers (PBDEs). Total PCB concentrations in apple snails (3.78-1812ngg(-1) dry weight (dw)) were significant higher than that in soil samples (0.48-90.1ngg(-1) dw). PBDE (excluding BDE 209) concentrations in apple snail and soil samples ranged from 0.09 to 27.7ngg(-1) dw and 0.06 to 31.2ngg(-1) dw, respectively. Concentrations of PCBs and PBDEs in snails and soils correlated negatively with the distance from Fengjiang. Both the concentrations and profiles of the pollutants were significantly correlated (p<0.05) between the snail and soil samples, indicating the suitability of apple snail as a reliable bioindicator for PCBs and PBDEs contamination in this region. Relatively high concentrations of PCBs and PBDEs at locations far from e-waste dismantling sites implied that these pollutants have been transported to surrounding regions.
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China.
Jianjie
J
Fu
Yawei
Y
Wang
Aiqian
A
Zhang
Qinghua
Q
Zhang
Zongshan
Z
Zhao
Thanh
T
Wang
Guibin
G
Jiang
D000818:Animals; D002681:China; D059029:Electronic Waste / Q000032:analysis; D004784:Environmental Monitoring / Q000379:methods*; D055768:Halogenated Diphenyl Ethers / Q000032:analysis* / Q000378:metabolism; D011078:Polychlorinated Biphenyls / Q000032:analysis* / Q000378:metabolism; D059027:Recycling; D012037:Refuse Disposal; D012908:Snails / Q000378:metabolism*; D012989:Soil Pollutants / Q000032:analysis* / Q000378:metabolism
D055768:Halogenated Diphenyl Ethers; D012989:Soil Pollutants; D011078:Polychlorinated Biphenyls