大气活性氧物质污染特征、机制及其来源研究进展  

Advances in research on the pollution characteristics,mechanisms and sources of active reactive oxygen species in the atmosphere

作　　者：孙浩堯 王玛敏 陈庆彩 SUN Haoyao;WANG Mamin;CHEN Qingcai(Xi'an Aeronautical Institute,Xi'an,710077,China;Shaanxi University of Science and Technology,Xi'an,710016,China)

机构地区：[1]西安航空学院,西安710077 [2]陕西科技大学,西安710016

出　　处：《环境化学》2022年第6期2052-2061,共10页Environmental Chemistry

基　　金：陕西省青年科技新星项目(2021KJXX-36)资助.

摘　　要：活性氧(reactive oxygen species,ROS)是指含有氧、且具有较高氧化反应活性的一类物质的总称,因其会由大气颗粒物中的不同组分诱导生成并危害人体健康而广受关注.本文主要概述了大气ROS的国内外研究进展,总结了大气ROS的检测方案,并详细介绍了细胞衬里液法、二硫苏糖醇检测法等几种常用的胞外ROS检测方案.大气细颗粒物是大气ROS的主要诱导组分,具体的成分为水溶性有机物和金属离子,环境持久性自由基也可能是潜在的ROS诱导物质.ROS的来源研究表明燃烧过程和交通排放等人为来源是大气ROS的主要来源.在未来的研究中可以以大气ROS的生成机制为研究重点,通过实验室模拟等具体实验手段全面研究ROS的污染特征,为ROS污染评价体系的制定提供数据支撑.Reactive Oxygen Species(ROS)refers to the general term for a class of substances that contain oxygen and have high oxidation reaction activity.They are widely concerned because they are induced by different components in atmospheric particulates and endanger human health.This article mainly summarizes the research progress of atmospheric reactive oxygen species at home and abroad,summarizes the detection schemes of atmospheric reactive oxygen species,and introduces in detail several common extracellular ROS detection schemes such as cell lining liquid method and dithiothreitol detection method.Atmospheric fine particulate matter is the main inducing component of atmospheric ROS,and the specific components are water-soluble organic matter and transition metals.Persistent free radicals in the environment may also be potential ROS inducing substances.Studies on the sources of ROS have shown that man-made sources such as combustion processes and traffic emissions are the main sources of atmospheric ROS.In the future research,we can focus on the generation mechanism of atmospheric ROS,and comprehensively study the pollution characteristics of ROS through specific experimental methods such as laboratory simulation,so as to provide data support for the ROS pollution evaluation system.

关 键 词：大气 ROS 污染特征 

分 类 号：X51[环境科学与工程—环境工程]