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武汉市高校大气降尘中水溶性离子污染特征及来源解析

钟萍,  汪昂绿,  张慧迪,  龚香宜,  张家泉,  张喜皓,  胡宏元,  田倩

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文章导航 > 环境工程  > 2021 >  39(2): 98-104
钟萍, 汪昂绿, 张慧迪, 龚香宜, 张家泉, 张喜皓, 胡宏元, 田倩. 武汉市高校大气降尘中水溶性离子污染特征及来源解析[J]. 环境工程, 2021, 39(2): 98-104. doi: 10.13205/j.hjgc.202102015
引用本文: 钟萍, 汪昂绿, 张慧迪, 龚香宜, 张家泉, 张喜皓, 胡宏元, 田倩. 武汉市高校大气降尘中水溶性离子污染特征及来源解析[J]. 环境工程, 2021, 39(2): 98-104. doi: 10.13205/j.hjgc.202102015
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ZHONG Ping, WANG Ang-lu, ZHANG Hui-di, GONG Xiang-yi, ZHANG Jia-quan, ZHANG Xi-hao, HU Hong-yuan, TIAN Qian. CHARACTERISTICS AND SOURCE ANALYSIS OF WATER-SOLUBLE ION POLLUTION IN ATMOSPHERIC DUSTFALL IN WUHAN UNIVERSITIES[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(2): 98-104. doi: 10.13205/j.hjgc.202102015
Citation: ZHONG Ping, WANG Ang-lu, ZHANG Hui-di, GONG Xiang-yi, ZHANG Jia-quan, ZHANG Xi-hao, HU Hong-yuan, TIAN Qian. CHARACTERISTICS AND SOURCE ANALYSIS OF WATER-SOLUBLE ION POLLUTION IN ATMOSPHERIC DUSTFALL IN WUHAN UNIVERSITIES[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(2): 98-104. doi: 10.13205/j.hjgc.202102015
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武汉市高校大气降尘中水溶性离子污染特征及来源解析

doi: 10.13205/j.hjgc.202102015

  • 1. 武汉科技大学 资源与环境工程学院, 武汉 430081;

  • 2. 湖北理工学院 环境科学与工程学院, 湖北 黄石 435003;

  • 3. 矿区环境污染控制与修复湖北省重点实验室, 湖北 黄石 435003;

  • 4. 湖北省工业安全工程技术研究中心, 武汉 430081;

  • 5. 中国地质大学(武汉) 环境学院, 武汉 430074

基金项目: 

国家重点研发计划项目（2017YFC0212602）；湖北省高等学校优秀中青年科技创新团队计划项目（T201729）。

详细信息
    作者简介:

    钟萍(1992-),女,硕士,主要研究方向为环境污染化学。zhongdping@qq.com

    通讯作者:

    龚香宜(1975-),女,博士,教授,主要研究方向为污染物在环境中的迁移转化,水污染控制技术。gong_xy@126.com

    张家泉(1980-),男,博士,教授,主要研究方向为环境污染化学、污染控制化学与技术。zhangjiaquan@hbpu.edu.cn

CHARACTERISTICS AND SOURCE ANALYSIS OF WATER-SOLUBLE ION POLLUTION IN ATMOSPHERIC DUSTFALL IN WUHAN UNIVERSITIES

  • 1. College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China;

  • 2. School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi 435003, China;

  • 3. Hubei Key Laboratory of Mine Environmental Pollution Control and Remediation, Huangshi 435003, China;

  • 4. Industrial Safety Engineering Technology Research Center of Hubei Province, Wuhan 430081, China;

  • 5. School of Environmental Studies, China University of Geosciences, Wuhan 430074, China

    摘要
  • 摘要: 于2017年11月采集武汉高校大气降尘样品106个，采用离子色谱仪分析样品中9种水溶性离子（F-、Cl-、NO3-、SO42-、Na+、NH4+、K+、Mg2+、Ca2+）的含量，用相关性分析和比值分析法解析其污染特征，用PCA-MLR模型初步探讨其来源及贡献率。结果表明：武汉高校降尘中主要水溶性离子为Ca2+、SO42-、NO3-，平均浓度顺序为Ca2+>SO42->NO3->K+>Na+>Cl->Mg2+>NH4+>F-，且F-、Cl-、NO3-、SO42-、Na+、K+、Mg2+、Ca2+分布存在明显的空间质异性。m（NO3-）/m（SO42-）为0.28，以固定源污染为主；降尘样品总体呈碱性。9种可溶性离子主要以NaCl、KCl、MgCl2、Mg（NO3）2、MgSO4、Ca（NO3）2、CaSO4等形式存在，主要来源于土壤/交通混合源、燃烧源、工业源，三者贡献率分别为8%、12%、80%。
    Abstract: There were 106 dustfall samples collected from Wuhan universities during November 2017. Nine types of water-soluble ions (F-, Cl-, NO3-, SO42-, Na+, NH4+, K+, Mg2+, Ca2+) were analyzed by ion chromatography. Correlation analysis and ratio analysis were used to analyze the pollution characteristics, and the PCA-MLR model was used to discuss its source and contribution rate. The results showed that the main water-soluble ions in dust reduction in Wuhan universities were Ca2+, SO42- and NO3-, and the average concentration order was Ca2+>SO42->NO3->K+>Na+>Cl->Mg2+>NH4+>F-. There were obvious spatial qualitative differences in the distribution of F-, Cl-, NO3-, SO42-, Na+, K+, Mg2+ and Ca2+. The mass ratio of NO3-/SO42- was 0.28, which was dominated by fixed-source pollution; the dust-reducing samples were generally alkaline. Nine types of soluble ions existed mainly in forms of NaCl, KCl, MgCl2, Mg (NO3)2, MgSO4, Ca(NO3)2, CaSO4, etc., mainly from soil/transport mixed sources, combustion sources, industrial source, and their contribution rates were 8%, 12% and 80%, respectively.
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  • 收稿日期:  2020-04-23
  • 网络出版日期:  2021-07-19

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