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| 基于灰关联分析的天津市气溶胶消光特征研究 | |
| 引用本文： | 董海燕,陈魁,蔡斌彬,白志鹏,古金霞.基于灰关联分析的天津市气溶胶消光特征研究[J].中国环境监测,2010,26(6):46-49. |
| 作者姓名： | 董海燕 陈魁 蔡斌彬 白志鹏 古金霞 |
| 作者单位： | 1. 天津市环境监测中心,天津,300191 2. 南开大学,天津,300071;国家环境保护城市空气颗粒物污染重点实验室,天津,300071 3. 南开大学,天津,300071;国家环境保护城市空气颗粒物污染重点实验室,天津300071 4. 南开大学,天津,300071;国家环境保护城市空气颗粒物污染重点实验室,天津,300071;天津城市建设学院,天津,300384 |
| 摘 要： | 根据天津市秋季(2006年10月10日～20日)消光系数(bext)、PM2.5、SO2、NOX、NO2、O3质量浓度及相对湿度监测结果,利用灰色关联分析法分析大气消光系数同空气中的几种主要污染要素的相关性。结果表明,与消光系数有关的几种主要指标的灰关联度序为PM2.5NOXRHNO2O3,其中PM2.5与消光系数的灰关联系数达到0.905,远高于其他相关指标。同时对PM2.5和消光系数相关分析表明,监测期间天津市PM2.5质量消光系数为6.04m2/g。 |
| 关 键 词： | 灰关联分析 PM2.5 消光系数 质量消光系数 |
| 收稿时间： | 2009/12/28 0:00:00 |
| 修稿时间： | 2010/4/30 0:00:00 |
A Study on Ambient Air Light Extinction and Characteristics Using Grey Relational Analysis Method in Tianjin City |
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| DONG Hai-yan.A Study on Ambient Air Light Extinction and Characteristics Using Grey Relational Analysis Method in Tianjin City[J].Environmental Monitoring in China,2010,26(6):46-49. | |
| Authors: | DONG Hai-yan |
| Institution: | Tianjin Environmental Monitoring Centre, Tianjin 300191, China;Tianjin Environmental Monitoring Centre, Tianjin 300191, China |
| Abstract: | To know the relationship between the light extinction and air pollutants/RH. An online monitoring work including light extinction coefficient(bext),NOX,NO2,O3 and relative humidity was made in the autumn (from Oct 10th to 20th)of 2006.A grey relational analysis was applied and results showed that PM2.5 was correlative to the total light extinction coefficient with the highest relational grade(0.905)and the grey relational sequence was PM2.5>NOx>RH>NO2>O3.The relation of mass extinction coefficient, extinction coefficient and mass concentration was also analyzed. The result showed that mass extinction coefficient of PM2.5 in Tianjin is 6.04m2/g. |
| Keywords: | Grey relational analysis PM2 5 Light extinction Mass extinction coefficient |
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