大气中过氧化氢(H2O2)的观测、来源及环境效应研究进展

IF 4.2 2区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES
Lian Duan , Shuyuan Jia , Xuran Li , Yalong Wang , Yiming Zhang , Shuang Fu , Yang Wang , Can Ye , Pengfei Liu , Zongbo Shi , Yujing Mu
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引用次数: 0

摘要

大气过氧化氢(H2O2)是对流层中影响大气氧化能力的重要氧化剂,在S(IV)氧化中起关键作用。在过去的十年中,研究人员基于现场测量、实验室实验和建模,提出了新的H2O2形成机制及其对环境的重大影响。然而,这些与大气H2O2相关的非常规化学过程尚未得到系统的综述,之前关于大气H2O2的综述发表于21世纪初。本文综述了国内外近年来大气H2O2的研究进展,重点介绍了大气H2O2的观测、来源和环境效应。首先,我们总结了大气H2O2在城市、农村、山区、森林和海洋区域以及高层大气中的时间和垂直分布。接下来,我们讨论了最近在了解大气H2O2的潜在来源及其多相形成机制方面的进展。最后,概述了大气H2O2日益增加的环境效应,包括其在诊断O3-NOx-VOCs敏感性中的作用以及在硫酸盐形成中的意义。本文综述将有助于全面了解大气H2O2的演变过程,并呼吁未来开展更多的大气H2O2研究,以更好地应对当前复杂的大气污染挑战。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Recent advancements in observations, sources, and environmental effects of atmospheric hydrogen peroxide (H2O2)
Atmospheric hydrogen peroxide (H2O2) is an important oxidant in the troposphere that impacts atmospheric oxidation capacity and plays key roles in S(IV) oxidation. In the past decade, researchers have proposed new H2O2 formation mechanisms as well as its significant environmental effects, based on field measurements, laboratory experiments, and modeling. However, these unconventional chemical processes related to atmospheric H2O2 have not been systematically reviewed, previous reviews on atmospheric H2O2 were published in the early 2000s. Herein, we review the recent atmospheric H2O2 studies throughout the world, mainly focusing on the observations, sources, and environmental effects of atmospheric H2O2. First, we summarize the temporal and vertical distributions of atmospheric H2O2 across urban, rural, mountainous, forested, and oceanic regions, as well as the upper atmosphere. Next, we discuss recent advancements in understanding potential sources of atmospheric H2O2 and its multiphase formation mechanisms. Finally, the increasing environmental effects of atmospheric H2O2, including its role in diagnosis of O3-NOx-VOCs sensitivity and significance in sulfate formation, are outlined. This review will help gain a comprehensive understanding of atmospheric H2O2 evolution and call for more future studies on atmospheric H2O2 to better deal with the current complex air pollution challenges.
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来源期刊
Atmospheric Environment
Atmospheric Environment 环境科学-环境科学
CiteScore
9.40
自引率
8.00%
发文量
458
审稿时长
53 days
期刊介绍: Atmospheric Environment has an open access mirror journal Atmospheric Environment: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Atmospheric Environment is the international journal for scientists in different disciplines related to atmospheric composition and its impacts. The journal publishes scientific articles with atmospheric relevance of emissions and depositions of gaseous and particulate compounds, chemical processes and physical effects in the atmosphere, as well as impacts of the changing atmospheric composition on human health, air quality, climate change, and ecosystems.
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