globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosres.2018.11.009
Scopus记录号: 2-s2.0-85056812268
论文题名:
Study on pollution behavior and sulfate formation during the typical haze event in Nanjing with water soluble inorganic ions and sulfur isotopes
作者: Guo Z.; Guo Q.; Chen S.; Zhu B.; Zhang Y.; Yu J.; Guo Z.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2019
卷: 217
起始页码: 198
结束页码: 207
语种: 英语
英文关键词: Haze ; Sulfate formation ; Sulfur isotope ; Water soluble inorganic ions
Scopus关键词: Coal combustion ; Fog ; Ions ; Isotopes ; Nitrogen oxides ; Oxidation ; Sulfur compounds ; Haze ; High relative humidities ; Homogeneous oxidation ; Isotopic fractionations ; Sulfate formation ; Sulfur isotope ; Vehicle exhaust emissions ; Water soluble inorganic ions ; Water pollution ; atmospheric pollution ; concentration (composition) ; haze ; ion ; isotopic fractionation ; oxidation ; particulate matter ; sulfur isotope ; China ; Jiangsu ; Nanjing [Jiangsu]
英文摘要: The typical haze event in Nanjing was selected to study pollution behavior and sulfate formation by field measurement. Based on the concentrations of water soluble inorganic ions in PM 2.5 , pollution characteristics of the haze were investigated with phase clustering analysis. Besides, δ 34 S values of SO 2 and sulfate in PM 2.5 were determined in order to explore sulfur sources and sulfate formation. The result showed that PM 2.5 pollution during the haze event was significantly serious, which was mainly from coal combustion, vehicle exhaust emission and biomass burning. Sulfate formation was attributed to aqueous phase sulfur oxidation reactions promoted by high relative humidity and NO 2 concentration under the alkaline condition. The color of sky on 22 Dec. was ascribed to the combination of sunset glow and fine particles in high-moisture atmosphere. δ 34 S values of SO 2 are found to be lower than those of sulfate in PM 2.5 indicating there was presence of sulfur isotopic fractionation during SO 2 oxidation. The average contribution of SO 2 homogenous oxidation to sulfate was about 51.2% during the haze events. The ratio of SO 2 heterogeneous and homogeneous oxidation to sulfate was mainly attributed to the concentrations of gaseous pollutants (NO 2 , SO 2 and O 3 ) and relative humidity of the atmosphere. © 2018
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122359
Appears in Collections:气候变化事实与影响

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作者单位: Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing, 210044, China; School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China; Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China; School of Atmospheric physics, Nanjing University of Information Science & Technology, Nanjing, 210044, China; Yale-NUIST Center on Atmospheric Environment, Nanjing University of Information Science & Technology, Nanjing, 210044, China

Recommended Citation:
Guo Z.,Guo Q.,Chen S.,et al. Study on pollution behavior and sulfate formation during the typical haze event in Nanjing with water soluble inorganic ions and sulfur isotopes[J]. Atmospheric Research,2019-01-01,217
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