2016年陕西省O_3浓度时空变化规律  

Spatial and temporal characteristics of O_3 in Shaanxi province in 2016

作　　者：南国卫 孙虎 NAN Guowei;SUN Hu(School of Geography and Tourism, Shaanxi Normal University, Xi＇a 710119, China;National Demonstration Center for Experimental Geography Education, Shaaanxi Normal University, Xian 710119, China)

机构地区：[1]陕西师范大学地理科学与旅游学院,西安710119 [2]地理国家级实验教学示范中心(陕西师范大学),西安710119

出　　处：《干旱区资源与环境》2018年第5期183-190,共8页Journal of Arid Land Resources and Environment

基　　金：教育部科学技术重点项目(105152)资助

摘　　要：基于2016年陕西省各市共计50个空气质量监测站点的O_3数据,采用空间数据统计方法、克里金插值法以及Morlet小波分析法来探讨陕西省O_3浓度的时空变化规律以及与其他污染物之间的相关性关系。结果显示:1)陕西省O_3浓度整体呈"夏高冬低、春秋次之"的季节变化规律,"倒U形"起伏的月变化规律,"倒U形"周期性脉冲波动型的日变化规律,"单峰型"起伏的时变化规律,冬季>秋季>春季>夏季的季节达标规律,以及"夏高冬低,春秋居中"的季节污染规律。2)陕西省O_3浓度整体呈"东北高,西南低"的空间分布特征。O_3浓度关中>陕北>陕南。铜川O_3浓度最高,汉中最低。夏季是陕西省O_3浓度最高、污染范围最广、危害最大的季节,冬季反之。3)O_3浓度与PM_(2.5)、PM_(10)、SO_2、CO、NO_2污染物浓度均为负相关,与CO、NO_2、PM_(2.5)污染物浓度为显著相关。颗粒物PM_(2.5)浓度对O_3污染物浓度的影响比PM_(10)更加显著,表明颗粒污染物越小,对大气中O_3浓度的影响越大。Based on the 03 concentration data of 50 air quality monitoring stations in Shaanxi Province in 2016, spatial data statistical method, Kriging interpolation method and Morlet wavelet analysis method were used to study the spatial and temporal variation of 03 concentration in Shaanxi Province and the relationship between 03 and other atmospheric pollutants. The results showed that ： （ 1 ） 03 had a seasonal variation with a higher level in summer and lower level in winter while a medium level in spring and autumn, a inverted U - shaped monthly variation, a periodical inverted U -impulse fluctuation type daily variation, a single peak hourly variation, sea- sonal characters that 03 concentration reached the standard was winter 〉 autumn 〉 spring 〉 summer, and sea- sonal pollution variation characters were with higher level in summer and lower level in winter while a medium level in spring and autumn. （2） O3 in the east and the north was higher, while it was lower in the west and south. 03 concentration from high to low followed by Guanzhong 〉 northern Shaanxi 〉 southern Shaanxi. 03 con- centration was the highest in Tongchuan, the lowest in Hanzhong. Summer was the season with the highest 03 concentration, the most extensive pollution, the most dangerous season in Shaanxi Province; winter was vice ver- sa. （3） 03 concentration was negatively correlated with the concentration of PM/.5 , PMl0, SO2 , CO, NO2 pollu- tants, and the concentration of CO, NO2 and PMzs pollutants was significantly correlated. PM2.5 concentration had more significant effect on the concentration of O3 than PM10, indicating that the smaller the pollutants of par- ticulate matter, the greater the impact on 03 concentration in the atmosohere.

关 键 词：O3 时空变化规律 大气污染物 陕西省 

分 类 号：X513[环境科学与工程—环境工程]