Study on hygroscopic properties of atmospheric aerosols using <italic style="font-style: italic">κ</italic>-Köhler theory

WANG Yukun; ZHANG Xianren; CAO Dapeng

doi:10.11949/0438-1157.20181222

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Study on hygroscopic properties of atmospheric aerosols using κ-Köhler theory

Energy and environmental engineering | 更新时间：2026-07-24

- Study on hygroscopic properties of atmospheric aerosols using κ-Köhler theory
- CIESC Journal Vol. 70, Issue 7, Pages: 2691-2698(2019)
- 作者机构：
  
  北京化工大学有机无机复合材料国家重点实验室，北京 100029
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20181222
  CLC： X 513
- Received：17 October 2018，
  
  Revised：2019-04-11，
  
  Online First：24 July 2026，
  
  Published：05 July 2019
- 稿件说明：
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王昱焜, 张现仁, 曹达鹏. 利用κ-Köhler理论研究大气气溶胶的吸湿特性[J]. 化工学报, 2019, 70(7): 2691-2698

WANG Yukun, ZHANG Xianren, CAO Dapeng. Study on hygroscopic properties of atmospheric aerosols using κ-Köhler theory[J]. CIESC Journal, 2019, 70(7): 2691-2698
王昱焜, 张现仁, 曹达鹏. 利用κ-Köhler理论研究大气气溶胶的吸湿特性[J]. 化工学报, 2019, 70(7): 2691-2698 DOI： 10.11949/0438-1157.20181222.

WANG Yukun, ZHANG Xianren, CAO Dapeng. Study on hygroscopic properties of atmospheric aerosols using κ-Köhler theory[J]. CIESC Journal, 2019, 70(7): 2691-2698 DOI： 10.11949/0438-1157.20181222.

摘要

利用

-Köhler理论对西安、北京两地大气气溶胶体系的吸湿特性进行研究。选取多种代表性无机物（硫酸盐、硝酸盐、氯盐）及有机物（烯烃、芳香烃、羧酸）建立气溶胶体系模型，使研究体系更接近于真实大气成分。结果表明，在空气质量由清洁状态向雾霾发生状态转变的过程中，两种体系中均呈现有机物含量逐渐减少而(NH

)

和NH

含量逐渐增多的趋势，这种变化趋势总是促使气溶胶体系整体吸湿能力增强，因此更易吸湿增长形成雾霾。对体系中不同组分对吸湿性的影响进行了定量预测，理论预测的变动趋势与实际观测的变动趋势相同，揭示了雾霾形成过程中各组分的变动趋势及影响程度，为针对性解决雾霾问题提供思路。

Abstract

The

-Köhler theory was used to study the hygroscopic properties of atmospheric aerosol systems in Xi an and Beijing. The aerosol model was established by choosing several typical inorganic (sulfate

nitrate

chloride) and organic components (cycloene

aromatic hydrocarbon

carboxylic acid) to mimic to the real complex atmospheric composition. The results show that

when air quality changes from clean state to polluted state

the content of organic components gradually decreases whereas the concentration of (NH

)

and NH

gradually increases in both systems. This trend always promotes the overall hygroscopicity of the aerosol systems

which in turn enhances the adsorption of moisture and thus the formation of haze. The influence of different components on the hygroscopicity of the whole system was also quantitatively predicted. The trend of variation was revealed by the theory and the theoretical prediction was in a good agreement with that observed in practice.

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Keywords

references

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⁰

Study on hygroscopic properties of atmospheric aerosols using κ-Köhler theory

DOI：10.11949/0438-1157.20181222

摘要

Abstract

关键词

Keywords

references