[1]崔嵩,李一凡.不同温度带多氯联苯土壤残留特征的数值模拟[J].哈尔滨工程大学学报,2012,(12):1547-1552.[doi:10.3969/j.issn.1006-7043.20120203]
 CUI Song,LI Yifa.Numerical simulation on residue characteristics of polychlorinated biphenyls in soil in different temperature zones[J].hebgcdxxb,2012,(12):1547-1552.[doi:10.3969/j.issn.1006-7043.20120203]
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不同温度带多氯联苯土壤残留特征的数值模拟(/HTML)
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2012年12期
页码:
1547-1552
栏目:
出版日期:
2012-12-25

文章信息/Info

Title:
Numerical simulation on residue characteristics of polychlorinated biphenyls in soil in different temperature zones
文章编号:
1006-7043(2012)12-1547-06
作者:
崔嵩李一凡
1.哈尔滨工业大学 国际持久性有毒物质联合研究中心,黑龙江 哈尔滨150090; 2. 加拿大环境部科学技术局,加拿大 多伦多 M3H 5T4
Author(s):
CUI Song LI Yifa
1.International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), Harbin Institute of Technology, Harbin 150090, China; 2. Science and Technology Branch, Environment Canada, Toronto M3H 5T4, Canada
关键词:
多氯联苯数值模拟温度带残留浓度分布特征
分类号:
X131.3
DOI:
10.3969/j.issn.1006-7043.20120203
文献标志码:
A
摘要:
为了解多氯联苯(PCBs)在不同温度带的环境分布行为及特征,采用ChnGIPERM(Chinese gridded industrial pollutants emission and residue model)模型,对PCB同系物单源以相同排放量向大气排放,进行了土壤残留特征的数值模拟,并根据不同温度带选取相应的受体点,进行环境分布行为及特征的分析研究.研究结果表明,PCB同系物在土壤中的残留量与离污染源的距离、理化性质及气象条件有关,随着距离的增大土壤残留浓度降低,气象条件会影响多氯联苯的分布状况.PCB同系物从土壤中的挥发与具有较强温度依存性的蒸汽压有关,低氯取代的PCB同系物因其蒸汽压大于高氯取代的PCB同系物,易于从土壤中挥发而导致其土壤中的残留量迅速降低.[OH]降解速率系数随着氯原子数的增多而降低,从而使长距离迁移过程中,高纬度地区随着氯原子数的增多而使PCBs土壤中的含量增高.

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备注/Memo

备注/Memo:
国家自然科学基金资助项目(20977022);哈尔滨工业大学城市水资源与水环境国家重点实验室开放基金(ES200804)
更新日期/Last Update: 2013-01-16