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个人信息Personal Information
副教授
博士生导师
硕士生导师
任职 : 环境学院教工党支部宣传委员
性别：男
毕业院校：中国科学院广州地球化学研究所
学位：博士
所在单位：环境学院
学科：环境科学. 环境工程
办公地点：西部校区环境楼
联系方式：E-mail:wangyandut@dlut.edu.cn
电子邮箱：wangyandut@dlut.edu.cn
The influence of land use on the concentration and vertical distribution of PBDEs in soils of an e-waste recycling region of South China
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论文类型：期刊论文
发表时间：2014-08-01
发表刊物：ENVIRONMENTAL POLLUTION
收录刊物：SCIE、EI、PubMed、Scopus
卷号：191
页面范围：126-131
ISSN号：0269-7491
关键字：E-waste; PBDEs; Vertical transfer; Soil core; Farming activities
摘要：The vertical distribution of polybrominated diphenyl ethers (PBDEs) in soil at four sites within an e-waste recycling region of South China was investigated. PBDE concentrations in soil ranged from 138 to 765 ng/g. There was a trend of decreasing PBDE concentration with soil depth, especially in the paddy field. However, high concentrations of BDE-209 were found in deeper soils indicating a highly preferential migration. There was a stronger correlation between PBDEs and total organic carbon (TOC), compared to dissolved organic carbon (DOC), which suggests that the association between non-dissolved organic carbon (NDOC) and PBDEs is stronger than for DOC. Different land use types, in particular differences in farming activities, significantly influenced the vertical distribution of PBDEs in soils. PBDEs displayed a higher leaching tendency in moist paddy soil than in drier soils. The frequent flooding condition in paddy field may facilitate the vertical transfer of PBDEs to the deeper soils. (C) 2014 Elsevier Ltd. All rights reserved.