大连市中心区O_3污染特征分析  

Pollution Characteristics of Ozone in Dalian Central Urban Area

作　　者：韩立达[1] 

机构地区：[1]大连市环境监测中心,辽宁大连116023

出　　处：《中国环境管理干部学院学报》2009年第2期76-77,84,共3页Journal of Environmental Management College of China

摘　　要：本文采用2007年大连市环境自动监测数据，分析了城市中心区O3的污染特征。结果表明：O3质量浓度的最大值出现在午后15：00—17：00，比太阳辐射强度最大值的出现时间滞后2h左右；O3质量浓度的季节性变化十分显著，春夏季较高，秋季次之，冬季最低；汽车尾气是近地面O3污染的主要原因。This article analyzed pollution characteristics of ozone in city central area using Dalian environmental automatic monitoring data in 2007. Results indicated that the maximum concentration of ozone occurred form 3 p.m. to 5 p. m. , which was later about two hours than the time of appearance of maximum solar radiation;the seasonal change Of ozone concentration was very notable, the concentration in spring and summer was higher, that in autumn took second place and in winter was lowest; the tail gas of automobile was the main reason of ozone pollution near the ground.

关 键 词：O3 污染特征 光化学污染 

分 类 号：X51[环境科学与工程—环境工程]