Polybrominated diphenyl ethers in road and farmland soils from an e-waste recycling region in Southern China: Concentrations, source profiles, and potential dispersion and deposition

被引：191

作者：

Luo, Yong ^{[2
]}

Luo, Xiao-Jun ^{[1
]}

Lin, Zhen ^{[1
]}

Chen, She-Jun ^{[1
]}

Liu, Juan ^{[1
]}

Mai, Bi-Xian ^{[1
]}

Yang, Zhong-Yi ^{[2
]}

机构：

[1] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China

[2] Sun Yat Sen Univ, Sch Life Sci, Guangzhou 510275, Guangdong, Peoples R China

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2009年 / 407卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Polybrominated diphenyl ethers (PBDEs); Road soil; Farmland soils; E-waste; Profile; BROMINATED FLAME RETARDANTS; DIBENZO-P-DIOXINS; DECABROMODIPHENYL ETHER; PLANT UPTAKE; EXPOSURE; BIODEGRADATION; DEGRADATION; ENVIRONMENT; BIPHENYLS; MIXTURES;

D O I：

10.1016/j.scitotenv.2008.10.044

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The present study analyzed road soils collected near the dismantling workshops of an e-waste recycling region in South China to determine the PBDE profiles. Farmland soils at a distance of about 2 km from the dismantling workshops were also collected to evaluate the potential dispersion and deposition of PBDEs in the surrounding environment. Total PBDE concentrations ranged from 191 to 9156 ng/g dry weight in road soils and from 2.9 to 207 ng/g dry weight in farmland soils, respectively. Three PBDE source profiles were observed from the road soils by principal component analysis, and were compared with the congener patterns in different technical products. Elevated abundances of octa- and nona-congeners were found in the "deca-" derived PBDEs as compared with the deca-BDE products. The results in this study suggest that debromination of BIDE 209 may have occurred during the use of electric and electronic equipment and/or another technical formulation (Bromkal 79-8DE) was also likely the source of octa- and nona-congeners in e-wastes. Comparison of the PBDE patterns in road and farmland soils implied that the PBDEs in farmland soils have been subject to complex environmental processes. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1105 / 1113

页数：9

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