天津市秋季臭氧浓度影响因素及相关关系研究  

Correlations of affecting environmental factors with the ozone pollution in Tianjin

作　　者：韩素芹[1] 黄岁樑[1] 边海[2] 解以扬[2] 秦保平[3] 

机构地区：[1]南开大学环境科学与工程学院,天津300071 [2]天津市气象科学研究所,天津300074 [3]天津市环境监测中心,天津300191

出　　处：《环境污染与防治》2007年第12期893-895,899,共4页Environmental Pollution & Control

基　　金：国家科技部公益基金资助项目(No.2005DIB3J105);天津市社会发展基金资助项目(No.043185111-22)

摘　　要：选择天津市秋季典型重污染时期2005年11月2～7日近地面大气O3、NO、NO2、CO、紫外线(UV)强度和温度等观测数据,研究O3浓度的时间变化特征及其与相关前体物、气象条件的相关关系。结果表明,在观测期间O3浓度存在明显的日变化周期,在13:00～14:00时浓度最大,夜间变化平缓;O3浓度与NO、NO2、NOX和CO等前体物呈较好的负相关关系;温度和UV与O3浓度密切相关,昼间O3与UV呈相同变化趋势,相关系数达0.71,O3浓度变化滞后于UV变化,将O3浓度与前1小时的UV对比分析,相关系数提高到0.81。The near surface concentrations of NOx,NO,NO2 ,CO in the urban area of Tianjin during November 2 7,2005 and some meteorological factors（UV, temperature）were correlated with the O3 concentration. The O3 con centration exhibited high variations within the 24 h period, with a peak between 1-2 pro, and it was more constant in the evening. The O3 concentration was negatively correlated with concentrations of its precursors（NO, NO2, NOx and CO）, which were found to be interrelated. The O3 concentration was positively correlated with the UV intensity with a correlation coefficient of 0.71;it was better correlated with the UV measured 1 h earlier（correlation coefficient = 0.81）. The O3 concentration was also positively correlated with the temperature.

关 键 词：O3 前体物 光化学污染 紫外线强度 温度 

分 类 号：X51[环境科学与工程—环境工程]