| NOx存在条件下相对湿度对甲苯氧化产物的影响 |
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| 引用本文： | 郭新梅,杨书申,黄道,李臻阳,吴苗苗,南成学.NOx存在条件下相对湿度对甲苯氧化产物的影响[J].中国环境科学,2020,40(6):2335-2344. |
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| 作者姓名： | 郭新梅 杨书申 黄道 李臻阳 吴苗苗 南成学 |
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| 作者单位： | 1. 中原工学院, 能源与环境学院, 河南 郑州 450000;
2. 浙江大学地球与科学学院, 大气科学系, 浙江 杭州 310000 |
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| 基金项目： | 国家基金委青年科学基金资助项目（41605097）；国家自然科学基金资助项目（41375145） |
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| 摘 要： | 利用流动管反应器模拟甲苯与氧化剂×OH在NOx存在条件下的反应，定量测定了不同相对湿度条件下（17.5%、35%、50%、70%）反应生成的部分气相产物和颗粒相产物，计算了不同相中产物产率，测量了不同相对湿度下的颗粒相有机碳（OC）产率，推导了相对湿度对甲苯氧化反应的影响机制.结果表明，相对湿度不仅对甲苯与×OH反应途径比例有影响，还对产物的产率及氧化程度有影响.
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| 关 键 词： | 相对湿度 甲苯 气相产物 二次有机气溶胶 产率 |
| 收稿时间： | 2019-11-15 |
Effect of relative humidity on oxidation products of toluene in the presence of NOx |
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| GUO Xin-mei,YANG Shu-shen,HUANG Dao,LI Zhen-yang,WU Miao-miao,NAN Cheng-xue.Effect of relative humidity on oxidation products of toluene in the presence of NOx[J].China Environmental Science,2020,40(6):2335-2344. |
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| Authors: | GUO Xin-mei YANG Shu-shen HUANG Dao LI Zhen-yang WU Miao-miao NAN Cheng-xue |
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| Institution: | 1. School of Energy & Environment, Zhongyuan University of Technology, Zhengzhou 450000, China;
2. Department of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou 310000, China |
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| Abstract: | A flow tube reactor was used to simulate the reaction of toluene and OH radical in the presence of NOx.The products formed in gas phase and particle phase under different relative humidity conditions (17.5%, 35%, 50%, 70%) were determined. The yields of detected products and organic carbon (OC) in the gas and particle phases were reported. The present study show that the relative humidity not only affects the ratio of the reaction pathway of toluene and×OH but also the yield and oxidation degree of the product. |
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| Keywords: | relative humidity toluene gas phase product secondary organic aerosol yield |
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