Modeling Secondary Organic Aerosols in China: State of the Art and Perspectives

IF 6.4 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Current Pollution Reports Pub Date : 2023-01-16 DOI:10.1007/s40726-022-00246-3

Jingyi Li, Haowen Zhang, Lin Li, Fei Ye, Hongli Wang, Song Guo, Na Zhang, Momei Qin, Jianlin Hu

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引用次数: 1

Abstract

Purpose of Review

Fine particulate matter (PM_2.5) is a huge environmental challenge in China. Based on field studies, secondary organic aerosols (SOA) contribute greatly to PM_2.5 formation in many locations. Modeling SOA is a frontier research field in air quality and a rapidly developing field internationally. This review intends to provide a state-of-the-art understanding of the current status of SOA modeling in China and recommendations for future research.

Recent Findings

SOA has been shown to exhibit significant spatial and seasonal variations in China. The traditional pathway of SOA from the condensation of semi-volatile products by the oxidation of volatile organic compounds (VOCs) tends to significantly underestimate the observations. This gap has been greatly improved by considering new pathways such as the heterogeneous reactions of dicarbonyls and epoxides, the aging of primary organic aerosols and SOA, the oxidation of semi- and intermediate VOCs from emissions, and the aqueous-phase reactions of water-soluble organic species. In addition to these mechanisms, the contributions of specific precursors and sources also depend on the emission inventory of precursors, which has significant uncertainties. The interactions between anthropogenic and biogenic sources and meteorological facteros affect SOA formation. Overall, SOA plays an essential role in the budget of solar radiative forcing and the new particle formation.

Summary

This review focuses on the advances in modeling SOA in China since 2000. Parameterization of SOA mechanisms and properties and the emission and meteorology inputs should be improved to understand the characteristics and influences of SOA in China.

Abstract Image

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中国二次有机气溶胶的模拟:现状与展望

细颗粒物(PM2.5)在中国是一个巨大的环境挑战。根据实地研究，二次有机气溶胶(SOA)在许多地区对PM2.5的形成起着重要作用。SOA建模是空气质量领域的一个前沿研究领域，也是国际上发展较快的一个领域。本综述旨在提供对中国SOA建模现状的最新理解以及对未来研究的建议。最近的研究结果表明，soa在中国表现出显著的空间和季节变化。传统的SOA途径是由挥发性有机化合物(VOCs)氧化产生的半挥发性产物的冷凝，这往往大大低估了观测结果。通过考虑新的途径，如二羰基和环氧化物的非均相反应、初级有机气溶胶和SOA的老化、排放物中半和中间挥发性有机化合物的氧化以及水溶性有机物质的水相反应，这一差距得到了极大的改善。除了这些机制外，具体前体和来源的贡献还取决于前体排放清单，这具有很大的不确定性。人为和生物源与气象因素之间的相互作用影响SOA的形成。总的来说，SOA在太阳辐射强迫和新粒子形成的平衡中起着至关重要的作用。本文综述了自2000年以来中国SOA建模的进展。为了更好地理解SOA在中国的特点和影响，需要改进SOA机制和属性的参数化以及排放和气象输入。

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

Current Pollution Reports Environmental Science-Water Science and Technology

CiteScore

12.10

自引率

1.40%

发文量

期刊介绍： Current Pollution Reports provides in-depth review articles contributed by international experts on the most significant developments in the field of environmental pollution.By presenting clear, insightful, balanced reviews that emphasize recently published papers of major importance, the journal elucidates current and emerging approaches to identification, characterization, treatment, management of pollutants and much more.