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| 上海气象因素对PM2.5等大气污染物浓度的影响 |
| Influence of meteorological conditions in Shanghai on the concentration of PM2.5 and other air pollutants |
| 投稿时间:2014-09-24 |
| DOI:10.13259/j.cnki.eri.2016.02.002 |
| 中文关键词: 气象因素 PM2.5 NO2 SO2 |
| 英文关键词:meteorological condition PM2.5 NO2 SO2 |
| 基金项目: |
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| 中文摘要: |
| 统计了上海市2013年6月至2014年5月PM2.5、NO2、SO2月平均质量浓度和气象条件,分析了气温、风向、风力、降水量、湿度与污染物月平均质量浓度的相关性。结果发现:气温与污染物质量浓度呈负相关性;夏季的主导风向有利于污染物扩散和稀释,而冬季的主导风向则可引起污染物聚集;风力的增强有利于污染物扩散;降水是颗粒污染物沉降的方法之一,但在不产生降水的情况下湿度增大会造成二次气溶胶的生成,使得污染物质量浓度增加。 |
| 英文摘要: |
| Monthly average concentration of PM2.5,SO2,and NO2 and meteorological conditions in Shanghai from June 2013 to May 2014 was summarized.Correlation between monthly average concentration of air pollutants and temperature,win direction,wind power,rainfall,and humidity was analyzed.The negative correlation between temperature and concentration of air pollutants was found.The predominant wind direction in summer was helpful to the diffusion and dilution of air pollutants,while the predominant wind direction in winter would cause the accumulation of air pollutants.However,the enhanced wind power favored the diffusion of air pollutants.Rainfall was one method to cause the precipitation of particles in air pollutants.The increasing of humidity without rainfall could result in the formation of secondary aerosol and thus the growing of air pollutant concentration. |
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