2015年北京及周边地区臭氧浓度特征及来源模拟  

Characteristics and source simulation of ozone in Beijing and its surrounding areas in 2015

作　　者：贾海鹰 尹婷 瞿霞 程念亮[2,3,4] 程兵芬[2,4] 王继康[4,5] 唐伟[4] 孟凡[2,4] 柴发合[2,4] JIA Hai-ying;YIN Ting;QU Xia;CHENG Nian-liang;CHENG Bing-fen;WANG Ji-kang;TANG Wei;MENG Fan;CHAI Fa-he(Hunan Meteorological Service Center, Changsha 410118, China;College of Water Sciences, Beijing Normal University, Beijing 100875, China;Bejing Municipal Environmental Monitoring Center, Beijing 100048, China;Chinese Research Academy of Environmental Sciences, Beijing 100012, China;National Meteorological Center, Beijing 100081, China)

机构地区：[1]湖南省气象服务中心,湖南长沙410118 [2]北京师范大学水科学研究院,北京100875 [3]北京市环境保护监测中心,北京100048 [4]中国环境科学研究院,北京100012 [5]国家气象中心,北京100081

出　　处：《中国环境科学》2017年第4期1231-1238,共8页China Environmental Science

基　　金：长沙市空气质量达标规划项目(Z131100005613046);北京市市委组织部优秀人才培养资助(2016000021733G166);国家科技支撑计划(2016YFC0208902);环保公益专项(201409005)

摘　　要：采用模式模拟与观测资料相结合的方式,分析了2015年北京及周边地区O_3时空分布及来源特征.结果表明:2015年北京及周边地区O_3具有较为明显的时间变化规律,高浓度臭氧主要集中在5~9月份.首次发现北京及周边地区O_3存在两条污染带,一条污染带主要集中在北京-保定-山西北部地区,另一条主要集中在北京、天津及渤海上空.2015年8月11~14日发生的一次臭氧重污染过程中,模拟计算的北京、天津、石家庄、太原、郑州市的O_3外来输送率(水平及垂直输送率)分别为63%、70%、74%、60%、71%;区域输送对于各地区O_3浓度有着十分重要的影响.Characteristics of the spatial and temporal distributions of O3,as well as its source apportionments were all analyzed in Beijing and its surrounding areas by applying the numerical model and comprehensive measurements.The results showed that ozone presented obvious spatial and temporal distribution characteristics and higher concentrations mainly concentrated in the month from May to Sep.There were two pollution belts of ozone in Beijing and its surrounding areas.A pollution zone was mainly concentrated in Beijing-Baoding-northern Shanxi regions,the other was mainly concentrated in Beijing-Tianjin-Bohai areas.The calculated averaged ozone contributions of regional transport(horizontal and vertical transport)to Beijing,Tianjin,Shijiazhuang,Taiyuan,Zhengzhou were63%,70%,74%,60%and71%respectively during one heavy air episode of ozone from Aug11th to14th,2015.Regional transportation exerted asignificant impact to the variations of local ozone.

关 键 词：臭氧 空间分布 区域输送 北京及周边地区 

分 类 号：X513[环境科学与工程—环境工程]