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J4  2012, Vol. 46 Issue (4): 590-598    DOI: 10.3785/j.issn.1008-973X.2012.04.003
能源与机械工程     
杭州城区土壤中的二恶英分布特性
肖佩林1,2, 陆胜勇1, 王奇1, 王飞1, 严建华1
1. 浙江大学 热能工程研究所,浙江 杭州 310027;2. 南华大学 机械工程学院,湖南 衡阳 421001
PCDD/F distribution characteristics in soil samples from
urban areas of Hangzhou city
XIAO Pei-lin1,2, LU Sheng-yong1, WANG Qi1, WANG Fei1, YAN Jian-hua1
1. Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, China;
2. School of Mechanical Engineering, University of South China, Hengyang 421001, China
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摘要:

采集了杭州市城北老工业区土壤样品(8个)、新工业区土壤样品(5个)和旅游区土壤样品(2个),检测土样中17种二恶英有毒异构体的同系物毒性当量,初步获得了城区土壤二恶英的质量分数分布特性.分析结果显示,老工业区土壤的二恶英质量分数较高,毒性当量ITEQ为0.65~41.75 pg/g,平均值为12.73 pg/g.新工业区和旅游区的土壤二恶英质量分数较低,土壤中二恶英毒性当量分别为0.61~1.33 pg/g和1.53~2.11 pg/g,平均值分别为1.07 pg/g和1.81 pg/g.有毒同系物毒性当量分析显示,老工业区土壤毒性当量最大贡献者是八氯代二恶英(OCDD),占总量的33.6%,主要原因可能为OCDD在环境中较其他有毒同系物稳定,也说明老工业区的污染源以OCDD的排放为主.

Abstract:

The concentrations of 17 polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) congeners as well as tetra-to-octahomologues were determined in 8 soils in the old industrial area, 5 soils in the new industrial area and 2 soils in the tourism area from Hangzhou. The levels of PCDD/Fs in urban soils were primarily obtained. The ITEQ values of soils in old industrial area ranged 0.65~41.75 pg/g with average 12.73 pg/g, which is higher than the other two areas. The I-TEQ values of soils in the new industrial area and tourism area ranged (average) 0.61~1.33 pg/g (1.07 pg/g) and 1.53~2.11 pg/g (1.81 pg/g), respectively. The analysis of 17 congeners shows that OCDD accounts for 33.6%, which is the major contributor to total I-TEQ in the soils of old industrial area. This is because the OCDD is more stable than other congeners in the environment, which indicates that OCDD is the main congener emission of dioxin in the old industrial area.

出版日期: 2012-05-17
:  X 833  
基金资助:

国家“863”高技术研究发展计划资助项目(2007AA061304-2),浙江省科技计划资助项目(2008C23090).

通讯作者: 陆胜勇,男,副教授.     E-mail: lushy@zju.edu.cn
作者简介: 肖佩林(1984—),女,硕士生.从事环境影响评价的研究. E-mail: xiaopeilin001@zju.edu.cn
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引用本文:

肖佩林, 陆胜勇, 王奇, 王飞, 严建华. 杭州城区土壤中的二恶英分布特性[J]. J4, 2012, 46(4): 590-598.

XIAO Pei-lin, LU Sheng-yong, WANG Qi, WANG Fei, YAN Jian-hua. PCDD/F distribution characteristics in soil samples from
urban areas of Hangzhou city. J4, 2012, 46(4): 590-598.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2012.04.003        http://www.zjujournals.com/eng/CN/Y2012/V46/I4/590

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