A Parameterized Study on Rainfall Removal of Aerosols

IF 1.6 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Aerosol Science and Engineering Pub Date : 2023-07-20 DOI:10.1007/s41810-023-00185-6

Mingtao Chen, Qi Feng, Yanqiu Zuo, Xing Gao, Jun Huang, Hongqiang Wang

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引用次数: 0

Abstract

Wet removal is the primary method for the natural removal of atmospheric aerosol particles, and wet removal is a very complex process. According to the PM_2.5, PM₁₀, and meteorological data from 71 cities in China from 2016 to 2018, this study utilizes theoretical analysis methods based on the existing rainfall aerosol removal theory and real-time monitoring data to calculate the measured removal coefficient and theoretical removal coefficient for verification. According to the different rainfall intensities and rainfall times in Guilin, the measured value and the simulated value are verified, and the linear relationship obtained was Λ_s = 1.589 × 10^–5 + 0.609Λ_m, R² = 0.673, and the simulated value approximated to the measured value after correction. The same method was utilized to calculate the theoretical removal coefficient of polydisperse aerosols in 71 cities across the country, and the calculation parameters of the rainfall removal polydisperse aerosol model in different regions were modified.

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降雨去除气溶胶的参数化研究

湿法去除是自然去除大气气溶胶颗粒的主要方法，湿法去除是一个非常复杂的过程。根据2016年至2018年中国71个城市的PM2.5、PM10和气象数据，本研究利用基于现有降雨气溶胶去除理论和实时监测数据的理论分析方法，计算出实测去除系数和理论去除系数进行验证。根据桂林不同的降雨强度和降雨次数，对实测值和模拟值进行了验证，得到的线性关系为∧s = 1.589 × 10–5 + 0.609∧m，R2 = 0.673，并且模拟值近似于校正后的测量值。采用相同的方法计算了全国71个城市多分散气溶胶的理论去除系数，并对不同地区的降雨去除多分散气溶胶模型的计算参数进行了修正。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aerosol Science and Engineering Environmental Science-Pollution

CiteScore

3.00

自引率

7.10%

发文量

期刊介绍： ASE is an international journal that publishes high-quality papers, communications, and discussion that advance aerosol science and engineering. Acceptable article forms include original research papers, review articles, letters, commentaries, news and views, research highlights, editorials, correspondence, and new-direction columns. ASE emphasizes the application of aerosol technology to both environmental and technical issues, and it provides a platform not only for basic research but also for industrial interests. We encourage scientists and researchers to submit papers that will advance our knowledge of aerosols and highlight new approaches for aerosol studies and new technologies for pollution control. ASE promotes cutting-edge studies of aerosol science and state-of-art instrumentation, but it is not limited to academic topics and instead aims to bridge the gap between basic science and industrial applications. ASE accepts papers covering a broad range of aerosol-related topics, including aerosol physical and chemical properties, composition, formation, transport and deposition, numerical simulation of air pollution incidents, chemical processes in the atmosphere, aerosol control technologies and industrial applications. In addition, ASE welcomes papers involving new and advanced methods and technologies that focus on aerosol pollution, sampling and analysis, including the invention and development of instrumentation, nanoparticle formation, nano technology, indoor and outdoor air quality monitoring, air pollution control, and air pollution remediation and feasibility assessments.