天津市空气质量与气象因子相关分析  

The Correlation of Air Quality and Meteorologic Factors in Tianjin

作　　者：刘彩霞[1] 边玮瓅 

机构地区：[1]天津市环境监测中心,天津300191

出　　处：《中国环境监测》2007年第5期63-65,70,共4页Environmental Monitoring in China

摘　　要：对采暖期间气象因子与空气质量的相关关系进行了系统分析。结果表明，天气形势对空气质量影响显著，两者相关性很好，可以针对不同天气型开展污染源治理。地面风场对空气质量的影响具有双重性，即风速越大，空气质量越好，但当风速达到7m／s时，可吸入颗粒物受开放源影响污染浓度会有所增加。大气稳定度的日变化影响空气质量的日变化；层结越稳定，空气污染越重，稳定层结一般出现在早晨4：00-8：00和晚间19：00-23：00。The correlation of meteorologic factors and air quality was analyzed in this paper, The results showed that the synoptic situation significantly affectedair quality, The related actions to reduce air pollution could be taken according to the different situation. Surface wind influences air quality in the following two ways： bigger wind speed generally lead to better air quality; when the wind speed is bigger than 7m/s, PM10 concentration would be increased by surface dust from open sources. Daily atmospheric stability also can influence air quality, Stable boundry layer could cause the accumulation of pollutants to air pollution, The steady layer frequently appears in the periods of 4：00 - 8：00 and 19：00 - 23：00.

关 键 词：天气形势 风速 大气稳定度 空气质量 

分 类 号：X823[环境科学与工程—环境工程]