| 杭州市灰霾与非灰霾日不同粒径大气颗粒物来源解析 |
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| 引用本文： | 吴 琳,沈建东,冯银厂,毕晓辉,焦 荔,刘双喜.杭州市灰霾与非灰霾日不同粒径大气颗粒物来源解析[J].环境科学研究,2014,27(4):373-381. |
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| 作者姓名： | 吴 琳 沈建东 冯银厂 毕晓辉 焦 荔 刘双喜 |
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| 作者单位： | 南开大学环境科学与工程学院;国家环境保护城市空气颗粒物污染防治重点实验室;南开大学化学学院新催化材料科学研究所;杭州市环境监测中心站; |
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| 摘 要： | 在2011年典型灰霾和非灰霾天气下,采集了杭州市不同粒径的大气颗粒物样品,测定并分析各粒径段颗粒物的质量浓度及其化学成分;同时采集并分析了主要污染源排放的颗粒物样品,通过CMB(化学质量平衡)模型进行源解析.结果表明:灰霾天气下,二次粒子是杭州市各粒径段颗粒物的首要贡献源,其对≤1.1、1.1~3.3、3.3~5.8和5.8~10μm粒径段的颗粒物贡献率分别为60.4%、62.2%、54.8%和46.5%.在一次排放源中,机动车尾气是≤1.1和1.1~3.3μm粒径段颗粒物的重要来源,贡献率分别为13.8%和12.2%;城市扬尘是3.3~5.8μm粒径段颗粒物的重要来源,贡献率达到16.0%;而建筑施工尘是5.8~10μm粒径段颗粒物的重要来源,贡献率为14.2%.非灰霾天气下,随着颗粒物粒径的增加,二次粒子的贡献率显著下降,对≤1.1μm粒径段颗粒物的贡献率为42.7%,而对5.8~10μm粒径段颗粒物的贡献率仅为15.5%;机动车是各粒径段颗粒物的重要贡献源,贡献率均在20%以上;煤烟尘是≤3.3μm细粒径段颗粒物的重要贡献源类,贡献率为22.0%;城市扬尘是3.3~5.8μm粒径段颗粒物的重要来源,贡献率为18.3%;建筑施工尘依然是5.8~10μm粒径段颗粒物的重要来源,贡献率为21.4%.
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| 关 键 词： | 灰霾 不同粒径颗粒物 CMB模型 分粒径源解析 杭州市 |
| 收稿时间： | 2013/5/14 0:00:00 |
| 修稿时间： | 2014/1/5 0:00:00 |
Source Apportionment of Particulate Matters in Different Size Bins during Hazy and Non-Hazy Episodes in Hangzhou City |
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| WU Lin,SHEN Jian-dong,FENG Yin-chang,BI Xiao-hui,JIAO Li and LIU Shuang-xi.Source Apportionment of Particulate Matters in Different Size Bins during Hazy and Non-Hazy Episodes in Hangzhou City[J].Research of Environmental Sciences,2014,27(4):373-381. |
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| Authors: | WU Lin SHEN Jian-dong FENG Yin-chang BI Xiao-hui JIAO Li and LIU Shuang-xi |
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| Institution: | State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control, College of Environmental Science and Engineering of Nankai University, Tianjin 300071, China ;Institute of New Catalytic Materials Science College of Chemistry, Nankai University, Tianjin 300071, China;Environmental Monitoring Center Station of Hangzhou City, Hangzhou 310007, China;State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control, College of Environmental Science and Engineering of Nankai University, Tianjin 300071, China;State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control, College of Environmental Science and Engineering of Nankai University, Tianjin 300071, China;Environmental Monitoring Center Station of Hangzhou City, Hangzhou 310007, China;Institute of New Catalytic Materials Science College of Chemistry, Nankai University, Tianjin 300071, China |
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| Abstract: | |
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| Keywords: | haze particulate matters in different size bins CMB receptor model size-segregated source apportionment Hangzhou City |
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