夏季城市大气O_3浓度影响因素及其相关关系  

Ozone Pollution,Influence Factors and Their Correlation at Urban Area in Summer

作　　者：单文坡[1] 殷永泉[1] 杜世勇[2] 闫怀忠 吕波[2] 侯鲁健[2] 

机构地区：[1]山东大学环境科学与工程学院,济南250100 [2]济南市环境保护监测站,济南250014

出　　处：《环境科学》2006年第7期1276-1281,共6页Environmental Science

基　　金：山东省中青年科学家奖励基金项目(02BS116)

摘　　要：利用2003年夏季济南市区近地面大气O3、相关前体物和气象因素等观测数据,研究了O3浓度的分布特征及时间变化规律,分析了7月份O3与NO、NO2和CO等前体物及太阳辐射和气温气象条件的相关性.结果表明,济南市区夏季O3污染比较严重,观测期间各污染物O3、NO、NO2、NOx和CO浓度都相对较高,昼间O3与各前体物的浓度呈较好的负相关关系,与太阳辐射具有非常明显的相关性,而与气温的相关性不明显.根据以上分析结果,利用回归分析方法,建立了昼间O3浓度与前体物、气象因子之间的相关模式,结果表明O3浓度的计算值与观测值符合性较好.Based on the observational data of near surface O3, NO, NO2, CO and meteorological factors in the urban area of Ji＇nan during summer 2003, the O3 concentrations and their temporal variation characteristics were studied. The correlation between O3 and its precursors （NO, NO2, CO） and related meteorological factors （solar radiation, temperature） was analyzed. The results show that O3 pollution during summer was very serious in Ji＇ nan, and the levels of O3, NO, NO2, NOx and CO were quite high during the observational period. O3 concentrations were well negatively correlated with NO, NO2, NOx and CO during day time. As to the meteorological factors, O3 concentrations correlated well with solar radiations, but showed no obvious correlation with the temperatures. Consequently, based on the above data and results, a regression equation that relates ozone concentrations observed in the day time to its precursors and solar radiation was constructed. The results show that the calculated values were in good agreement with the observed values.

关 键 词：臭氧 前体物 气象因素 相关性 光化学污染 

分 类 号：X515[环境科学与工程—环境工程]