试点城市O3浓度特征分析  

The Characters of Variation of Ozone in Experimental Cities

作　　者：孟晓艳[1] 王瑞斌[1] 杜丽[1] 李健军[1] 余予[2] 

机构地区：[1]中国环境监测总站,北京100012 [2]国家气象信息中心,北京100081

出　　处：《中国环境监测》2013年第1期64-70,共7页Environmental Monitoring in China

摘　　要：利用2009年O3试点城市的O3监测数据,分析了北京、天津、上海、青岛、沈阳和广东的O3浓度变化特征,统计了年超标情况,并结合气象要素数据分析了其对O3浓度的影响。结果表明,不同城市各点位间O3浓度变化趋势基本一致,但因点位类型不同,浓度存在差异;O3浓度呈单峰型日变化,在13:00—15:00出现最大值,6:00—7:00出现最小值;O3超标主要集中在4—8月份,广州和北京超标现象较多;O3浓度受温度、降水、风速和风向等气象要素影响较大。Based on the observation of surface ozone and meteorological data over 6 experimental cities in 2009, the variation characteristics of O3 concentrations, nonattainment days and the correlation between O3 and related meteorological parameter were analyzed. The results showed that the trend of the O3 concentrations between different sites in one city was Consistent, but with moderate differences. Diurnal variations of O3 concentrations exhibited with the characteristic of a single peak, and showed the peak often appeared at about 13：00 to 15：00 in the early afternoon and low concentrations during early morning. Nonattainment days of O3 occurred mainly from April to August. Temperature, precipitation, wind speed and wind direction had significant impact on ozone.

关 键 词：试点城市 臭氧浓度 气象要素 

分 类 号：X830.3[环境科学与工程—环境工程] X831