环境气溶胶中的有机硫酸盐：关于形成，丰度，命运和重要性的知识状况和未来研究方向。,Environmental Science & Technology

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环境气溶胶中的有机硫酸盐：关于形成，丰度，命运和重要性的知识状况和未来研究方向。
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2020-03-23 , DOI: 10.1021/acs.est.9b06751
Martin Brüggemann ₁ , Rongshuang Xu ₂ , Andreas Tilgner ₁ , Kai Chung Kwong ₂ , Anke Mutzel ₁ , Hon Yin Poon ₂ , Tobias Otto ₁ , Thomas Schaefer ₁ , Laurent Poulain ₁ , Man Nin Chan _{2,

3} , Hartmut Herrmann ₁

Affiliation

有机硫酸盐（OSs），也称为有机硫酸酯，是大气气溶胶颗粒的众所周知且普遍存在的成分。通常，假定它们是在生物源和人为源的空气团混合后形成的，即通过有机化合物与酸性硫酸盐颗粒之间的多相反应而形成。但是，与此简化的图片相反，最近的研究表明，OS也可能源自纯粹的人为前体，甚至直接源自生物质和化石燃料燃烧。此外，除了经典的OS形成途径外，还发现了几种替代途径，这表明OS形成可能通过大气中比最初预期的更广泛的形成机制发生。在过去的十年中，OS在大气科学界引起了越来越多的关注，并且有越来越多的研究报道了环境气溶胶中的大量OS物种。尽管如此，对OS浓度及其对大气物理化学过程的影响的估算仍与较大的不确定性有关，因此需要进行现场，实验室和模型研究的合并。在本重要评论中，我们还考虑了人为减少的二氧化硫（SO），总结了大气OS研究的知识现状，讨论了尚未解决的问题，并概述了未来的研究需求。要求进行结合的现场，实验室和建模研究。在本重要评论中，我们还考虑了人为减少的二氧化硫（SO），总结了大气OS研究的知识现状，讨论了尚未解决的问题，并概述了未来的研究需求。要求进行结合的现场，实验室和建模研究。在本重要评论中，我们还考虑了人为减少的二氧化硫（SO），总结了大气OS研究的知识现状，讨论了尚未解决的问题，并概述了未来的研究需求。₂）排放。特别是，我们专注于（1）OS的现场测量和测量技术，（2）OS的形成途径及其与大气的相关性，（3）大气颗粒中OS的转化，反应性和结局，以及（4）建模工作操作系统的形成及其全球数量。

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Organosulfates in Ambient Aerosol: State of Knowledge and Future Research Directions on Formation, Abundance, Fate, and Importance.

Organosulfates (OSs), also referred to as organic sulfate esters, are well-known and ubiquitous constituents of atmospheric aerosol particles. Commonly, they are assumed to form upon mixing of air masses of biogenic and anthropogenic origin, that is, through multiphase reactions between organic compounds and acidic sulfate particles. However, in contrast to this simplified picture, recent studies suggest that OSs may also originate from purely anthropogenic precursors or even directly from biomass and fossil fuel burning. Moreover, besides classical OS formation pathways, several alternative routes have been discovered, suggesting that OS formation possibly occurs through a wider variety of formation mechanisms in the atmosphere than initially expected. During the past decade, OSs have reached a constantly growing attention within the atmospheric science community with evermore studies reporting on large numbers of OS species in ambient aerosol. Nonetheless, estimates on OS concentrations and implications on atmospheric physicochemical processes are still connected to large uncertainties, calling for combined field, laboratory, and modeling studies. In this Critical Review, we summarize the current state of knowledge in atmospheric OS research, discuss unresolved questions, and outline future research needs, also in view of reductions of anthropogenic sulfur dioxide (SO₂) emissions. Particularly, we focus on (1) field measurements of OSs and measurement techniques, (2) formation pathways of OSs and their atmospheric relevance, (3) transformation, reactivity, and fate of OSs in atmospheric particles, and (4) modeling efforts of OS formation and their global abundance.

更新日期：2020-03-24

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