主办单位：中国气象局沈阳大气环境研究所
国际刊号：ISSN 1673-503X
国内刊号：CN 21-1531/P
气象与环境学报

气象与环境学报

• 论文 •    下一篇

青岛大气臭氧及其前体物时间变化与污染特征

杨雅琴;高会旺   

  1. 中国海洋大学海洋环境与生态教育部重点实验室 山东青岛266100
  • 收稿日期:2007-11-21 修回日期:2008-03-07 出版日期:2008-04-01 发布日期:2008-04-01

Dynamics of ozone and its precursors in the atmosphere and their pollution characteristics in Qingdao,Shandong province

YANG Ya-qin GAO Hui-wang   

  1. Key Laboratory of Marine Environmental Science and Ecology;Ministry of Education;Ocean University of China;Qingdao 266100;China
  • Received:2007-11-21 Revised:2008-03-07 Online:2008-04-01 Published:2008-04-01

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摘要： 利用2003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5 h),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—6 h;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。

关键词: 城市大气污染, 臭氧, 前体物, 时间变化, 滞后相关分析, 污染特征, 青岛

Abstract: According to the observational data in Baguan Mountain of Qingdao from December 2003 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.