Ionic strength effects on heterogeneous and multiphase chemistry: Clouds versus aerosol particles
Ionic strength effects on heterogeneous and multiphase chemistry: Clouds versus aerosol particles
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DOI：
10.1016/j.atmosenv.2020.117911
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发表时间：
2021
影响因子：
5
通讯作者：
Majda Mekic;S. Gligorovski
中科院分区：
文献类型：
--
作者：
Majda Mekic;S. Gligorovski
离子强度效应会影响气溶胶潮解粒子的动力学和产物在液态水含量(LWC)内的分布。大气氧化剂(臭氧、二氧化硫和二氧化氮等)与气溶胶液核的非均相反应也会受到离子强度的影响，这反过来又会影响重要的大气过程，如雾霾的形成。然而，离子强度对液相反应和与大气相关的非均相反应的影响过去几乎没有研究过。最后，液态水的离子强度会影响气液平衡。在这里，我们强调离子强度效应对气溶胶潮解粒子中化学过程的重要性。我们给出了这一主题的未来方向，强调离子强度可以影响气溶胶粒子和云滴的吸收和/或散射特性，而这反过来对于准确估计云和气溶胶的辐射强迫是至关重要的。
The ionic strength effect can influence the kinetics and products distribution within the liquid water content (LWC) of aerosol deliquescent particles. The heterogeneous reactions of atmospheric oxidants (O3, SO2, and NO2, among others) with liquid core of aerosols can be also influenced by ionic strength, which in turn can impact important atmospheric processes such as haze formation. However, the ionic strength effects on liquid phase reactions and on heterogeneous reactions of atmospheric relevance have been barely studied in the past. Finally, the gas-liquid equilibrium can be affected by ionic strength of the liquid water. Here we highlight the importance of ionic strength effects on chemical processes in the aerosol deliquescent particles. We give the future directions on this topic emphasizing that ionic strength can affect the absorption and/or scattering properties of aerosol particles and cloud droplets which in turn is crucial for accurate estimates of radiative forcing of clouds and aerosols.