中文摘要：

利用20O3年12月-2005年3月青岛八关山观测资料，分析大气中O3、NOx和CO浓度时间变化规律与影响因素，探讨O3及其主要前体物NOx、CO间复杂的相互作用及相关关系。结果表明：青岛NO2日平均浓度年超标率为25%；受光化学反应及大气运动等影响，NOx与CO浓度为冬季高、夏季低，O3与之相反；NOx与CO浓度日变化呈双峰型分布，日间高于夜间；O3浓度峰值出现于午后（滞后于NOx约5h），阴雨天夜间浓度出现回升。经滞后相关分析，NOx对O3浓度变化的累积效应作用时间为5—6h；O3与NO、NO2浓度比值可较明显地验证出辐射强度与尾气排放对青岛及其他地区污染特征的影响。青岛CO与NOx比值在不同天气条件下维持在10．0左右，可用于定性估计其大气污染特征。

英文摘要：

According to the observational data in Baguan Mountain of Qingdao from December 20O3 to March 2005, the dynamics of O3, NOx and CO concentrations and their controlling factors in the atmosphere were analyzed. The interactions between ozone and its precursors （such as NOx and CO） were also studied. The results indicate that daily average NO2 concentration is more than 25 % of the standard rate in 2004. NOx and CO concentrations are higher in winter and lower in summer, while O3 concentration is contrary because of photochemical reaction and atmosphere movement. There are two peaks in the curve of daily variations of NOx and CO concentrations. And NOx and CO concentrations in the day are higher than those in the night. The peak value of O3 appears in the afternoon, which is deferred about 5 hours for the peak value of NOx, and O3 concentration in the cloudy and rainy night will rise again. The ratio of O3 to NO2/NO can reflect the effects of radiation intensity and vehicle emission on pollution characteristics in Qingdao. The ratio of CO to NOx is around 10 under different weather conditions, which can be used to evaluate the characteristics of air pollution in different regions.