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Volume 39 Issue 2
Jul.  2021
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Article Navigation >  ENVIRONMENTAL ENGINEERING  > 2021  >  39(2): 98-104
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
shu

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

doi: 10.13205/j.hjgc.202102015

  • 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

  • Received Date: 2020-04-23
    Available Online: 2021-07-19
    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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