Photochemical Degradation of Organic Matter in the Atmosphere,Advanced Sustainable Systems

当前位置： X-MOL 学术 › Adv. Sust. Syst. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Photochemical Degradation of Organic Matter in the Atmosphere
Advanced Sustainable Systems ( IF 6.5 ) Pub Date : 2021-04-30 , DOI: 10.1002/adsu.202100027
Wei Hu ₁ , Dandan Liu ₁ , Sihui Su ₁ , Lujie Ren ₁ , Hong Ren ₁ , Lianfang Wei ₂ , Siyao Yue ₂ , Qiaorong Xie ₁ , Zhimin Zhang ₁ , Zihan Wang ₁ , Ning Yang ₁ , Libin Wu ₁ , Junjun Deng ₁ , Yulin Qi ₁ , Pingqing Fu ₁

Affiliation

Organic matter in the gas-phase and particles are important components of the atmosphere. Photochemical degradation is a major transformation pathway of atmospheric organic matter, which changes the atmospherically related life time and the environmental, climatic, and health-related effects of organic matter, as well as biogeochemical cycles of elements. In addition to field observations and model simulations, laboratory experiments based on smog chambers and flow tubes are important approaches to study the photodegradation mechanisms and influencing factors of atmospheric organics. Isotopic composition is also a useful tracer for photodegradation processes of different organics, for example, carboxylic acids. In this article, research progress on photodegradation of several significant categories of organic pollutants which have aroused widespread concern currently, for example, polycyclic aromatic hydrocarbons, carboxylic acids, brown carbon, organosulfates/organonitrates, microplastics, and bioaerosols, are reviewed. The effects of different degradation mechanisms including photochemical reactions, heterogeneous aqueous reactions, and microbial degradation are also compared. Although the photodegradation of atmospheric organics has been studied to a certain extent, much more effort should be made to fill the large knowledge gap between the actual and simulated photodegradation processes.

中文翻译：

大气中有机物的光化学降解

气相中的有机物和颗粒是大气的重要组成部分。光化学降解是大气有机物的主要转化途径，它改变了与大气有关的生命周期和有机物的环境、气候和健康相关效应，以及元素的生物地球化学循环。除了野外观测和模型模拟外，基于烟雾室和流管的实验室实验是研究大气有机物光降解机制和影响因素的重要途径。同位素组成也是不同有机物（例如羧酸）光降解过程的有用示踪剂。在本文中，综述了目前引起广泛关注的几大类有机污染物的光降解研究进展，例如多环芳烃、羧酸、棕碳、有机硫酸盐/有机硝酸盐、微塑料和生物气溶胶。还比较了不同降解机制的影响，包括光化学反应、非均相水反应和微生物降解。尽管对大气有机物的光降解已经进行了一定程度的研究，但还需要付出更多努力来填补实际光降解过程与模拟光降解过程之间的巨大知识空白。还比较了不同降解机制的影响，包括光化学反应、非均相水反应和微生物降解。尽管对大气有机物的光降解已经进行了一定程度的研究，但还需要付出更多努力来填补实际光降解过程与模拟光降解过程之间的巨大知识空白。还比较了不同降解机制的影响，包括光化学反应、非均相水反应和微生物降解。尽管对大气有机物的光降解已经进行了一定程度的研究，但还需要付出更多努力来填补实际光降解过程与模拟光降解过程之间的巨大知识空白。

更新日期：2021-04-30

点击分享查看原文

点击收藏

阅读更多本刊新发论文