| 2017~2022年亳州市PM2.5与O3复合污染演变特征及典型污染过程 |
| 摘要点击 1661 全文点击 329 投稿时间：2023-11-03 修订日期：2024-01-18 |
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| 中文关键词 臭氧（O3） 细颗粒物（PM2.5） 复合污染 季节性变化 苏皖鲁豫交界区 |
| 英文关键词 ozone（O3） fine particulate matter（PM2.5） complex pollution seasonal variations the border area of Jiangsu, Anhui, Shandong, and Henan |
| DOI 10.13227/j.hjkx.20241013 |
| 作者 | 单位 | E-mail | | 吴渴 | 长江大学化学与环境工程学院, 荆州 434023
中国环境科学研究院环境基准与风险评估国家重点实验室, 北京 100012 | 2404141968@qq.com | | 王学中 | 中国环境科学研究院环境基准与风险评估国家重点实验室, 北京 100012 | | | 张丹丹 | 中国环境科学研究院环境基准与风险评估国家重点实验室, 北京 100012
北京石油化工学院机械工程学院, 北京 102617 | | | 朱华龙 | 亳州市生态环境局, 亳州 236000 | | | 闫永馨 | 中国环境科学研究院环境基准与风险评估国家重点实验室, 北京 100012 | | | 李凡修 | 长江大学化学与环境工程学院, 荆州 434023 | 100564@yangtzeu.edu.cn | | 毋振海 | 中国环境科学研究院环境基准与风险评估国家重点实验室, 北京 100012 | wuzh01@craes.org.cn | | 郑振威 | 亳州市生态环境局, 亳州 236000 | | | 高祺凯 | 亳州市生态环境局, 亳州 236000 | |
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| 中文摘要 |
| 我国大气污染呈现复合型污染特征,且细颗粒物（PM2.5）和臭氧（O3）同时超标情况有所显现．为了解亳州市PM2.5与O3复合污染特征及演变规律,通过天气分型、典型污染过程分析和前体物来源解析等手段,探究了2017~2022年亳州市PM2.5和O3污染及变化情况,进而分析了其污染成因和前体物来源．结果表明：①亳州市PM2.5-O3复合污染多发生在高压控制型天气下,日间高温低湿等气象条件促进O3污染的形成,夜间高湿及大气强氧化性促进PM2.5中硝酸盐、铵盐等二次组分的生成. ②污染过程期间,亳州市PM2.5主要来自二次生成、交通污染源、生物质燃烧源、燃煤源和扬尘源；挥发性有机物（VOCs）主要来自生物质燃烧源、交通污染源、油气挥发源、溶剂使用源、化石燃料燃烧源、居民生活排放源和工业排放源；生物质燃烧源和交通污染源在污染过程期间的贡献均较大. ③气团轨迹和区域污染形势分析表明,南北气团叠加和本地生成是2022年10月18~27日亳州市PM2.5-O3复合污染的主要原因． |
| 英文摘要 |
| In China, atmospheric pollution exhibits a complex pattern, with simultaneous exceedances of fine particulate matter （PM2.5） and ozone （O3） levels becoming evident. To understand the complex pollution characteristics and evolution patterns of PM2.5 and O3 in Bozhou City, various methods such as weather classification, analysis of typical pollution processes, and investigation of precursor sources were employed to explore the pollution and variations of PM2.5 and O3 in Bozhou City from 2017 to 2022 and subsequently analyze their causes and precursor sources. The results indicated that： ① PM2.5-O3 complex pollution in Bozhou City mostly occurred under high-pressure weather conditions, with daytime high temperatures and low humidity promoting the formation of O3 pollution, whereas nighttime high humidity and atmospheric oxidative conditions promoted the generation of secondary components such as nitrates and ammonium salts in PM2.5. ② During the pollution process, PM2.5 in Bozhou City mainly originated from biomass burning, secondary generation, traffic pollution, coal combustion, and dust sources. Volatile organic compounds （VOCs） primarily emerged from plant sources, traffic pollution, oil and gas evaporation, solvent use, fossil fuel combustion, residential emissions, and industrial emissions. Biomass burning and traffic pollution made significant contributions to the pollution process. ③ Analysis of air mass trajectories and regional pollution situations indicated that the overlay of northern and southern air masses, along with local generation, were the main causes of the PM2.5-O3 complex pollution in Bozhou from October 18th to 27th, 2022. |
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