废弃电子垃圾拆解地野生鱼类卤系阻燃剂残留

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Abstract Due to its serious environmental pollution, crude e-waste dismantling has been banned in China, leaving many abandoned e-waste sites. However, the levels and the ecological risks of e-waste derived contaminants in these sites were not fully understood. In the present study, the concentrations of several halogenated flame retardants (HFRs), including polybrominated diphenyl ethers (PBDEs), polybrominated biphenyls (PBBs), Dechlorane Plus (DP) and alternative brominated flame retardants (ABFRs), were examined in wild mud carps and crucian carps collected from an abandoned e-waste site in South China. The concentrations of ∑HFRs in mud carps and crucian carps ranged from 1230 to 1680ng/g and from 141 to 650ng/g, respectively. These concentrations were 1~2 orders of magnitude higher than those detected in the same species from a reference site, suggesting heavy contamination of HFRs, despite of the fact that primitive e-waste recycling has been regulated for several years. Among the HFRs measured, PBDEs were detected at the highest concentrations contributing 96% and 89% to ∑HFRs in mud carp and crucian carp, respectively. There were significant differences in both the concentrations, and compositions of HFRs between mud carp and crucian carp, possibly resulting from the differences in the feeding habits, trophic level and lipid content between the two fish species. The result of risk assessment showed that PBDEs posed an important risk both for the fish and for piscivorous wildlife.

Key words： halogenated flame retardants PBDEs e-waste wild fish ecological risk

Received: 25 August 2020

PACS:

X503.225

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	WU Jiang-ping
	FENG Wen-lu
	WU Si-kang
	HU Yu
	MAI Bi-xian

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WU Jiang-ping,FENG Wen-lu,WU Si-kang等. Residues of halogenated flame retardants in wild fish from an abandoned e-waste site in South China[J]. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(4): 1886-1892.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2021/V41/I4/1886

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