北京上甸子本底站2003年秋冬季痕量气体浓度变化特征  

Characteristics of Trace Gases at Shangdianzi Background Station in Autumn and Winter in Beijing

作　　者：孟昭阳[1] 丁国安[1] 汤洁[1] 王淑凤[1] 

机构地区：[1]中国气象科学研究院中国气象局大气成分观测与服务中心中国气象局大气化学开放实验室,北京100081

出　　处：《气象科技》2007年第4期550-557,共8页Meteorological Science and Technology

基　　金：科技部国家公益性研究专项重点项目(2001DIA10009);科技部"国家重点基础研究发展规划项目"(TG1999045700)共同资助

摘　　要：2003年9月至2004年2月在北京上甸子区域大气污染本底监测站(117°07′E,40°39′N,海拔293.9 m)开展了对大气中痕量气体的连续在线监测,获得了NO、NO2、SO2、CO和O3等气体组分的变化特征、变化规律和浓度水平。初步分析表明,NO、NO2、SO2、CO和O3有明显的日变化和月变化特征。O3浓度在秋季较高,冬季较低;NO、NO2和SO2冬季出现浓度高值。探讨了O3和痕量气体与气象因子的关系。O3与NO、NO2、NOx、CO和SO2皆为负相关,CO与NOx和SO2具有较好的相关性。本底站痕量气体浓度与同期观测的城区污染物浓度相比其变化趋势基本呈同位相。The continuous field measurement of some trace gases on the surface air was conducted at Shangdianzi Regional Background Station （117°07′E,40°39′N, 293, 9 2004. Some variation characteristics, variation regulari m a. s. 1, ） in Beijing from September 2003 to February ty and the present concentrations of 03, NO, NO2, e NOx, SO2 and CO were obtained. Primary study shows that the concentrations of 03, NO, NOe, NOx, SO2, CO showed diurnal variation and monthly variation. In general, the ozone concentration was higher in autumn and lower in winter. The relationships between O3, NO, NO2, NOx, SO2, CO and meteorological factors are discussed. Ozone is negatively correlated with NO, NO2, SO; and CO. There is a good correlation between CO and NOx, SO2. It can be observed that the trends Of concentration variations of gaseous pollutants in Shangdianzi are similar to those in the Beijing urban area.

关 键 词：上甸子本底站 痕量气体 气象因子 O3 

分 类 号：X16[环境科学与工程—环境科学]