| 合肥市典型交通干道大气苯系物的特征分析 |
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| 引用本文： | 孟凡昊,秦敏,梁帅西,谢品华,夏晖晖,段俊,方武,唐科,李昂,魏桢,王凤.合肥市典型交通干道大气苯系物的特征分析[J].环境科学,2018,39(9):4060-4069. |
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| 作者姓名： | 孟凡昊 秦敏 梁帅西 谢品华 夏晖晖 段俊 方武 唐科 李昂 魏桢 王凤 |
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| 作者单位： | 中国科学院安徽光学精密机械研究所环境光学与技术重点实验室;中国科学技术大学;中国科学院区域大气环境研究卓越创新中心;安徽省环境监测中心站 |
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| 基金项目： | 国家重点研发计划项目（2016YFC0201000，2016YFC0208200）；中国科学院对外合作重点项目（GJHZ1511）；安徽省科技重大专项（16030801120，15czz04126）；国家科技支撑计划项目（2014BAC19B00） |
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| 摘 要： | 为研究合肥市交通干道大气苯系物污染状况,采用自主研制的差分吸收光谱(DOAS)系统,于2016年3月期间对合肥市交通主干道大气苯系物(苯、甲苯、间二甲苯和邻二甲苯)以及常规污染物NO_2、SO_2等进行了连续观测.观测结果显示,观测期间苯、甲苯、间二甲苯和邻二甲苯的平均浓度分别为:21.7、63.6、33.9和98.7μg·m~(-3).与国内外其它城市比较显示,合肥市交通干道大气苯和甲苯的污染处于中等水平,二甲苯的污染较为严重.结合观测期的间风速风向、T/B特征比值以及与CO等污染物的相关性,对上述苯系物来源进行了分析,结果显示观测期间T/B值为0.8~4.5,苯、甲苯与CO的相关性系数R分别为0.55和0.34.表明机动车尾气排放是观测区域苯和甲苯的主要排放源之一,同时也受到周边工业园区排放的影响,二甲苯的主要排放源为观测地点北偏东方向的涂料行业工业园区.苯和甲苯的夜间高浓度峰值分析结果表明,夜间的高浓度苯和甲苯可能主要来源于观测地点周边工业园区的排放.观测区域苯系物的臭氧生成潜势(OFP)表现为邻二甲苯间二甲苯甲苯苯,其中二甲苯的OFP占总OFP的85%,表明周边工业园区的排放对该地区臭氧生成的贡献较大.
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| 关 键 词： | 差分吸收光谱 苯系物(BTX) 交通排放 工业园区 臭氧生成潜势 |
| 收稿时间： | 2017/12/29 0:00:00 |
| 修稿时间： | 2018/3/13 0:00:00 |
Characteristics of Atmospheric BTX near a Main Road in Hefei City |
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| MENG Fan-hao,QIN Min,LIANG Shuai-xi,XIE Pin-hu,XIA Hui-hui,DUAN Jun,FANG Wu,TANG Ke,LI Ang,WEI Zhen and WANG Feng.Characteristics of Atmospheric BTX near a Main Road in Hefei City[J].Chinese Journal of Environmental Science,2018,39(9):4060-4069. |
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| Authors: | MENG Fan-hao QIN Min LIANG Shuai-xi XIE Pin-hu XIA Hui-hui DUAN Jun FANG Wu TANG Ke LI Ang WEI Zhen and WANG Feng |
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| Institution: | Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;University of Science and Technology of China, Hefei 230026, China,Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China,Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;University of Science and Technology of China, Hefei 230026, China,Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;University of Science and Technology of China, Hefei 230026, China;Center for Excellence in Regional Atmospheric Environment, Chinese Academy of Sciences, Xiamen 361021, China,Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China,Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China,Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China,Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;University of Science and Technology of China, Hefei 230026, China,Key Laboratory of Environment Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China,Anhui Environmental Monitoring Center, Heifei 230071, China and Anhui Environmental Monitoring Center, Heifei 230071, China |
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| Abstract: | |
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| Keywords: | differential optical absorption spectroscopy benzene toluene m-xylene and o-xylene (BTX) traffic emissions industrial park ozone formation potential |
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