| 北京市采暖期大气中PM_(10)和PM_(2.5)质量浓度变化分析 |
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| 引用本文： | 鲁兴,吴贤涛.北京市采暖期大气中PM_(10)和PM_(2.5)质量浓度变化分析[J].焦作工学院学报,2004,23(6):487-490. |
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| 作者姓名： | 鲁兴 吴贤涛 |
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| 作者单位： | [1]郑州大学环境与水利学院。河南郑州450002 [2]河南理工大学资源与环境工程系,河南焦作454010 |
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| 摘 要： | 对北京市2003年11月至12月间供暖期中大气悬浮颗粒物污染状况作了较详细的监测.数据表明,北京市的这段时间,其PM10和PM2.5质量浓度因日因月而异,其中PM10平均质量浓度为253.1μg/m3,超过国家二级标准(1996)1.9倍,PM2.5的变化幅度在8.9-276.2μg/m3之间,其平均值为145.2μg/m3,超过1999-2000年监测数值38.4％;其污染源和影响因素之间关系的研究表明:在供暖期间,温度、湿度和风速对PM10和PM2.5的累积和消散也起着至关重要的作用.
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| 关 键 词： | PM10 PM2.5 采暖期 气溶胶 |
Analysis of mass concentration variation feature of PM_(10) and PM_(2.5) in air during heating period in Beijing City |
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| LU Xing,WU Xian-tao.Analysis of mass concentration variation feature of PM_(10) and PM_(2.5) in air during heating period in Beijing City[J].Journal of Jiaozuo Institute of Technology(Natural Science),2004,23(6):487-490. |
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| Authors: | LU Xing WU Xian-tao |
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| Abstract: | Data of PM10 and PM2.5 collected during the heating period show that the aerosol mass concentration of PM10 and PM2.5 are variable diurnally and monthly. The PM10 average value is 253.1μg/m3, 1.9 times exceed that of the standard 2 daily value issued by the state in the year of 1996. The variation magnitude of concentration of PM2.5 is 8.9-276.2μg/m3, and the average value is 145.2μg/m3, which exceeds that of the data got from 1999-2000 around 38.4%. The relationship between the polluting sources and influence factors are herein dealt with in this paper. It was suggested that the wind speed, temperature and humidity are quite critical in this regard. |
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| Keywords: | PM10 PM2 5 heating period aerosol |
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