2019 年三亚市臭氧污染变化特征及污染源分担情况

IF 1.6 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES
Ding Huang, Ping Wang, Fang Lu, Youzhi Zhao, Wenci Ding, Jiaxin Du
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引用次数: 0

摘要

三亚常年具有低纬度、高温、高盐、高湿、太阳辐射强等地理气候特征,有利于光化学反应的发生,因此,三亚臭氧光化学污染问题亟待解决。本文基于2019年三亚市O3、NO2小时数据、各种采集的气象数据、VOCS主要物种在线监测数据,分析三亚市臭氧污染变化特征及来源分摊。结果表明,三亚市臭氧污染日变化特征符合臭氧光化学污染事件的典型特征,EKMA曲线表明三亚市整体属于NOX敏感区。臭氧消耗率(LOH)和臭氧生成潜势(OFP)表明,VOCS 的主要活性组分主要是异戊二烯、乙烯、正丁烷、丙烷等。相应的主要潜在排放源包括燃烧排放、溶剂挥发和汽车尾气排放。O3 减排计划是将臭氧浓度从 180 µg-m-3 降低到 158 µg-m-3,相当于将两种主要前体物(NOX 和 VOCS)的浓度分别降低 25% 和 20%。本文为三亚市臭氧光化学污染问题提供了科学依据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Change Characteristics and Source Apportionment of Ozone Pollution in Sanya City in 2019

Change Characteristics and Source Apportionment of Ozone Pollution in Sanya City in 2019

Sanya has geographical and climatic characteristics such as low latitude, high temperature, high salt, high humidity, and strong solar radiation all year round, which is conducive to the occurrence of photochemical reactions; therefore, the problem of ozone photochemical pollution in Sanya needs to be solved urgently. This article is based on the hourly data of O3 and NO2 in Sanya City in 2019, various collected meteorological data, and online monitoring of VOCS major species data to analyze the characteristics of ozone pollution changes and source apportionment in Sanya City. The results indicate that the daily variation characteristics of ozone pollution in Sanya City conform to the typical characteristics of ozone photochemical pollution events, and the EKMA curve indicates that Sanya City as a whole belongs to a NOX-sensitive area. The OH consumption rate (LOH) and ozone generation potential (OFP) indicate that the key active components of VOCS are mainly isoprene, ethylene, n-butane, propane, etc. The corresponding main potential sources of emissions include combustion emissions, solvent volatilization, and automotive exhaust emissions. The O3 emission reduction plan is to reduce the ozone concentration from 180 to 158 µg·m−3, corresponding to a 25 and 20% reduction in the concentrations of the two main precursors, NOX and VOCS, respectively. This article provides scientific support for the problem of ozone photochemical pollution in Sanya City.

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来源期刊
Aerosol Science and Engineering
Aerosol Science and Engineering Environmental Science-Pollution
CiteScore
3.00
自引率
7.10%
发文量
42
期刊介绍: ASE is an international journal that publishes high-quality papers, communications, and discussion that advance aerosol science and engineering. Acceptable article forms include original research papers, review articles, letters, commentaries, news and views, research highlights, editorials, correspondence, and new-direction columns. ASE emphasizes the application of aerosol technology to both environmental and technical issues, and it provides a platform not only for basic research but also for industrial interests. We encourage scientists and researchers to submit papers that will advance our knowledge of aerosols and highlight new approaches for aerosol studies and new technologies for pollution control. ASE promotes cutting-edge studies of aerosol science and state-of-art instrumentation, but it is not limited to academic topics and instead aims to bridge the gap between basic science and industrial applications.  ASE accepts papers covering a broad range of aerosol-related topics, including aerosol physical and chemical properties, composition, formation, transport and deposition, numerical simulation of air pollution incidents, chemical processes in the atmosphere, aerosol control technologies and industrial applications. In addition, ASE welcomes papers involving new and advanced methods and technologies that focus on aerosol pollution, sampling and analysis, including the invention and development of instrumentation, nanoparticle formation, nano technology, indoor and outdoor air quality monitoring, air pollution control, and air pollution remediation and feasibility assessments.
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