珠三角城市近地面臭氧污染分布特征及变化趋势  

Distribution and trends of ground level O3 pollution in the Pearl River Delta cities

作　　者：汪宇[1] 彭钰雯 陈多宏[1] 叶斯琪[1] 周亦凌 翟宇虹 赵燕[1] WANG Yu;PENG Yuwen;CHEN Duohong;YE Siqi;ZHOU Yiling;ZHAI Yuhong;ZHAO Yan(Guangdong Environmental Monitoring Center,State Environmental Key Laboratory of Regional Air Quality Monitoring,Guangdong Environmental Protection Key Laboratory of Secondary Air Pollution Research,Guangzhou Guangdong 510308;Marine College,Shandong University,Weihai Shandong 264209;Institute for Environmental and Climate Research,Jinan University,Guangzhou Guangdong 511436)

机构地区：[1]广东省环境监测中心,国家环境保护区域空气质量监测重点实验室,广东省环境保护大气二次污染研究重点实验室,广东广州510308 [2]山东大学海洋学院,山东威海264209 [3]暨南大学环境与气候研究院,广东广州511436

出　　处：《环境污染与防治》2019年第9期1103-1107,共5页Environmental Pollution & Control

基　　金：广东省科技发展专项基金资助项目(No.2017B020216007);国家重点研发计划项目(No.2017YFC0212806)

摘　　要：利用2013-2017年珠三角城市空气质量监测站的大气常规污染物逐时监测数据,探究珠三角区域臭氧(O3)污染年际变化、季节变化、日变化特征。结果表明,珠三角O3浓度秋季高冬春低,在一年之内呈现2月、5月、9-11月从低到高3个峰值;在一天之内呈现昼高夜低的单峰结构,峰值大多出现在午后15:00时。珠三角中部城市超标天数较多,沿海城市超标天数较少,大部分城市每年O3超标天数逐渐增多。O3月变化和日变化与NO2呈现负相关。总体而言,NO2平均浓度越高的城市,O3昼夜爬升值越高。The continuous observation O3 concentration in monitoring stations of the Pearl River Delta from 2013 to 2017 were used to study the annual,seasonal and diurnal distribution.The results showed that O3 concentration of the Pearl River Delta is high in autumn and low in winter and spring,with three peaks in February,May and September to November from low to high,which made autumn the heaviest polluted season.Diurnal variations of O3 concentration indicated high concentration during the day and low concentration at night,showing a single peak at 15:00.There were more O3 polluted days in central cities of Pearl River Delta,while less polluted days in the coastal cities.The number of annual polluted days increased in most cities.Monthly and diurnal O3 changes were inversely related to NO2.In general,cities with higher NO2 concentration had a larger daily variation range of O3.

关 键 词：珠三角 臭氧污染 时空分布 变化趋势 

分 类 号：F12[经济管理—世界经济]