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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 effects of rice canopy on the air-soil exchange of polycyclic aromatic hydrocarbons and organochlorine pesticides using paired passive air samplers
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论文类型：期刊论文
发表时间：2015-05-01
发表刊物：ENVIRONMENTAL POLLUTION
收录刊物：SCIE、EI、PubMed、Scopus
卷号：200
页面范围：35-41
ISSN号：0269-7491
关键字：PAHs; OCPs; Rice canopy; Air-soil exchange; Paired passive air samplers
摘要：The rice canopy in paddy fields can influence the air-soil exchange of organic chemicals. We used paired passive air samplers to assess the exchange of polycyclic aromatic hydrocarbons (PAHs) and organochlorine pesticides (OCPs) in a paddy field, South China. Levels of OCPs and light PAHs were generally higher under the canopy than above it. We found that the rice canopy can physically obstruct the evaporation of most OCPs and light PAHs, and can also act as a barrier to the gaseous deposition of p,p'-DDT and heavy PAHs. Paddy fields can behave as a secondary source of OCPs and light PAHs. The homolog patterns of these two types of chemical varied slightly between the air below and above the rice canopy, implying contributions of different sources. Paired passive air samplers can be used effectively to assess the in situ air-soil exchange of PAHs and OCPs in subtropical paddy fields. (C) 2015 Elsevier Ltd. All rights reserved.