北京怀柔夏季大气中的VOCs及其对O3和SOA的生成贡献

doi:10.7523/j.ucas.2021.0025

中国科学院大学学报 ›› 2023, Vol. 40 ›› Issue (1): 39-49.DOI: 10.7523/j.ucas.2021.0025

• 环境科学与地理学 • 上一篇

北京怀柔夏季大气中的VOCs及其对O₃和SOA的生成贡献

周毕安¹, 胡君², 奇奕轩³, 张逦嘉⁴, 霍鹏^1,5,6, 张元勋^1,5,6, 张阳^1,5,6, 王淑兰⁷

1. 中国科学院大学资源与环境学院, 北京 101408;
2. 中环天合(北京)环境科学研究院有限公司, 北京 100085;
3. 内蒙古鄂尔多斯市气象局, 内蒙古鄂尔多斯 017010;
4. 中国标准化研究院资源环境研究分院, 北京 100191;
5. 中国科学院大学北京燕山地球关键带国家野外科学观测研究站, 北京 101400;
6. 中国科学院大学VOCs污染控制材料与技术国家工程实验室, 北京 101400;
7. 中国环境科学研究院, 北京 100012

收稿日期:2021-01-25 修回日期:2021-03-23 发布日期:2021-07-02
通讯作者: 张阳,E-mail:zhangyang@ucas.ac.cn;王淑兰,E-mail:wangsl@craes.org.cn
基金资助:
国家重点研发计划(2016YFC0503600)和国家环境保护公益性行业科研专项(201509002)资助

Atmospheric VOCs and their contribution to O₃ and SOA formation in summer of Huairou District, Beijing City

ZHOU Bi¹, HU Jun², QI Yixuan³, ZHANG Lijia⁴, HUO Peng^1,5,6, ZHANG Yuanxun^1,5,6, ZHANG Yang^1,5,6, WANG Shulan⁷

1. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 101408, China;
2. ZHTH(Beijing) Environmental Science Research Institute Co. Ltd, Beijing 100085, China;
3. Ordos Meteorological Bureau, Ordos 017010, Inner Mongolia, China;
4. Resource and Environmental Branch, China National Institute of Standardization, Beijing 100191, China;
5. Beijing Yanshan Earth Critical Zone National Research Station, University of Chinese Academy of Sciences, Beijing 101400, China;
6. National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing 101400, China;
7. Chinese Research Academy of Environmental Sciences, Beijing 100012, China

Received:2021-01-25 Revised:2021-03-23 Published:2021-07-02

摘要/Abstract

摘要： 为研究北京郊区挥发性有机物(VOCs)的污染特征、来源以及环境影响，于2016年夏季对北京市怀柔区大气中99种VOCs进行在线监测。结果表明，观测期间VOCs体积分数平均值为20.02×10^-9，其中烷烃占比最高为38.48%，其次是含氧挥发性有机物(OVOCs)占比28.28%，卤代烃、芳香烃、烯烃和炔烃及乙腈占比较小。初始VOCs每小时的臭氧生成潜势为157.03μg·m^-3，主要贡献来自于OVOCs、烯烃和芳香烃,对二次有机气溶胶生成潜势贡献最大的组分为芳香烃。源解析结果表明VOCs来自背景源和燃烧源、工业源、柴油车排放、汽油车排放、油气挥发、天然源和有机溶剂使用。后向轨迹结果表明，除北京本地源排放外，河北、河南和山东省对北京VOCs污染贡献最大，天津市、辽宁省和内蒙古自治区也有一定贡献。

关键词: 挥发性有机物(VOCs), 臭氧生成潜势(OFP), 二次有机气溶胶生成潜势(SOAFP), 源解析, 后向轨迹, 区域传输

Abstract: In order to study the pollution characteristics and sources of volatile organic compounds (VOCs) and their environmental impact, 99 VOCs in Huairou District of Beijing were monitored online in summer 2016. During the observation period, the average concentration of VOCs was 20.02×10^-9, among which alkanes accounted for the highest proportion of 38.48%, followed by oxygenated volatile organic compounds (OVOCs) (28.28%), halogenated hydrocarbons (12.89%), and halogenated hydrocarbons, aromatic hydrocarbons, olefins and alkynes and acetonitrile for a smaller percentage. The average hourly ozone formation potential of the initial VOCs was 157.03μg·m^-3 and the major contributors were OVOCs, while alkenes and aromatics, aromatics were the major contributors to secondary organic aerosol formation potential. Seven sources were identified by the PMF model, including background and combustion sources, industrial sources, diesel vehicle emissions, gasoline vehicle emissions oil and gas volatilization, natural sources, and organic solvent use. The results from backward trajectory show that, in addition to local emissions, Hebei, Henan， and Shandong provinces have major contributions to Beijing VOCs pollution, while Tianjin City, Liaoning Province, and Inner Mongolia Autonomous Region also have some contributions.

Key words: volatile organic compounds(VOCs), ozone formation potential(OFP), secondary organic aerosol formation potential(SOAFP), source apportionment, backward trajectory, regional transmission

中图分类号:

X511

周毕安, 胡君, 奇奕轩, 张逦嘉, 霍鹏, 张元勋, 张阳, 王淑兰. 北京怀柔夏季大气中的VOCs及其对O₃和SOA的生成贡献[J]. 中国科学院大学学报, 2023, 40(1): 39-49.

ZHOU Bi, HU Jun, QI Yixuan, ZHANG Lijia, HUO Peng, ZHANG Yuanxun, ZHANG Yang, WANG Shulan. Atmospheric VOCs and their contribution to O₃ and SOA formation in summer of Huairou District, Beijing City[J]. Journal of University of Chinese Academy of Sciences, 2023, 40(1): 39-49.

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北京怀柔夏季大气中的VOCs及其对O₃和SOA的生成贡献

Atmospheric VOCs and their contribution to O₃ and SOA formation in summer of Huairou District, Beijing City

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