Spatial distributions and transport implications of short- and medium-chain chlorinated paraffins in soils and sediments from an e-waste dismantling area in China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Spatial distributions and transport implications of short- and medium-chain chlorinated paraffins in soils and sediments from an e-waste dismantling area in China
	Xu, Chi ; Zhang, Qin ; Gao, Lirong ; Zheng, Minghui ; Qiao, Lin ; Cui, Lili ; Wang, Runhua ; Cheng, Jie
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2019-02-01
卷号	649 页码:821-828
关键词	Short-chain chlorinated paraffin Medium-chain chlorinated paraffin E-waste dismantling area Sediment Soil
ISSN号	0048-9697
英文摘要	To investigate the spatial distributions, potential transport and ecological risks of chlorinated paraffins (CPs) in and around e-waste dismantling area, we collected soil samples within 5 km of the e-waste dismantling centers and sediment samples in the surrounding area from the lower reaches of Jiaojiang River. Short- and medium-chain chlorinated paraffins (SCCPs and MCCPs) were analyzed by two-dimensional gas chromatography coupled with electron-capture negative-ionization mass spectrometry (GC x GC-ECNI-MS). The SCCP and MCCP concentration ranges in soils were 68.5 to 2.20 x 10(5) ng/g dry weight (dw) and 507 to 4.40 x 10(6) ng/g dw, respectively. The ranges for the levels of SCCPs and MCCPs in sediments were 32.5-1.29 x 10(4) ng/g dw and 271-2.72 x 10(4) ng/g dw, respectively. No significant correlation was observed between total organic carbon (TOC) and CP concentrations (P> 0.05). The spatial distributions showed that the CP levels were closely related to e-waste pollution. Correspondence analysis revealed that shorter-chain and less chlorinated congeners were enriched in sediments from sites distant from e-waste pollution source, while longer-chain and higher chlorinated congeners were concentrated in soils and sediments collected near the pollution source, which indicated that complex environmental processes, such as transportation via atmosphere and/or water, and deposition, resulted in different CP profiles in different sampling locations and environment matrixes (e.g., soil and sediments). Principal component analysis (PCA) indicated that e-waste pollution could be the same source of SCCPs and MCCPs. The preliminary risk assessment indicated that CPs in soils within 1 km of e-waste dismantling centers at current levels posed a considerable risk to soil-dwelling organisms, and the sediment MCCPs in Jiaojiang estuary at present levels also posed a risk to sediment-dwelling organisms. (C) 2018 Elsevier B.V. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43019]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
作者单位	1.Agr Univ Hebei, Baoding 071000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Minist Environm Protect, Nanjing Inst Environm Sci, Nanjing 210042, Jiangsu, Peoples R China 4.Jianghan Univ, Wuhan 430056, Hubei, Peoples R China 5.Chinese Acad Sci, State Key Lab Environm Chem & Ecotoxicol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Xu, Chi,Zhang, Qin,Gao, Lirong,et al. Spatial distributions and transport implications of short- and medium-chain chlorinated paraffins in soils and sediments from an e-waste dismantling area in China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,649:821-828.
APA	Xu, Chi.,Zhang, Qin.,Gao, Lirong.,Zheng, Minghui.,Qiao, Lin.,...&Cheng, Jie.(2019).Spatial distributions and transport implications of short- and medium-chain chlorinated paraffins in soils and sediments from an e-waste dismantling area in China.SCIENCE OF THE TOTAL ENVIRONMENT,649,821-828.
MLA	Xu, Chi,et al."Spatial distributions and transport implications of short- and medium-chain chlorinated paraffins in soils and sediments from an e-waste dismantling area in China".SCIENCE OF THE TOTAL ENVIRONMENT 649(2019):821-828.