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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
Influence of plants on the distribution and composition of PBDEs in soils of an e-waste dismantling area: Evidence of the effect of the rhizosphere and selective bioaccumulation
点击次数：
论文类型：期刊论文
发表时间：2014-03-01
发表刊物：ENVIRONMENTAL POLLUTION
收录刊物：SCIE、EI、PubMed、Scopus
卷号：186
页面范围：104-109
ISSN号：0269-7491
关键字：Rhizosphere effect; E-waste; PBDEs; Soil; Substituent effect; Bioaccumulation
摘要：Rhizosphere effects on the distribution of PBDEs in e-waste contaminated soils were investigated. The geometric means of the PBDEs in the rhizosphere and non-rhizosphere soils were 32.6 ng/g and 12.2 ng/g, whereas the geometric means of the PBDEs in vegetable shoots and roots were 2.15 ng/g and 3.02 ng/g, respectively. PBDEs in soil at different distances from the root surface may first rise appreciably and then decrease to a non-rhizosphere level for long-term contaminated soils. Different PBDE compositions in roots and shoots indicated that PBDEs in shoots may be mainly taken up from the air. The ratios of BDE99/100 and BDE153/154 in plants and their corresponding soils were different. The bioaccumulations of BDEs 100 and 154 were much higher than those of BDEs 99 and 153, respectively. This indicated that the bioaccumulation was selective and influenced by the substitution pattern, with ortho-substituted isomers being more prevalent than meta-substituted isomers. (C) 2014 Elsevier Ltd. All rights reserved.