广东省区域臭氧污染过程三维输送特征分析与定量来源解析  

Assessment of three-dimensional transport processes and quantitative source analysis of regional ozone pollution in Guangdong Province

作　　者：许亦非 崔寅平 朱溢啸 沈傲 晋银保 汪海恒 刘一鸣 卢骁 樊琦 XU Yi-fei;CUI Yin-ping;ZHU Yi-xiao;SHEN Ao;JIN Yin-bao;WANG Hai-heng;LIUYi-ming;LU Xiao;FAN Qi(Guangdong Provincial Key Laboratory of Climate Change and Natural Disaster,School of Atmospheric Sciences,Sun Yat-Sen University,Guangzhou 510275,China;Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai),Zhuhai 519082,China;Shaoguan Meteorological Bureau of Guangdong Province,Shaoguan 512028,China)

机构地区：[1]中山大学大气科学学院,广东省气候变化与自然灾害重点实验室,广东广州510275 [2]南方海洋科学与工程广东省实验室(珠海),广东珠海519082 [3]广东省韶关市气象局,广东韶关512028

出　　处：《中国环境科学》2023年第5期2119-2127,共9页China Environmental Science

基　　金：广东省重点领域研发计划(2020B1111360003);广东省科技计划项目(科技创新平台类)(2019B121201002)。

摘　　要：使用WRF-CMAQ模式模拟广东省2021年3月25~27日区域O_(3)污染过程,模拟效果良好.在珠三角范围内O_(3)污染消退时,韶关市出现了异常O_(3)污染.以韶关为主要关注对象,针对珠三角地区向韶关的O_(3)输送过程进行分析与研究,利用CMAQ模式中的过程分析(PA)与来源解析(ISAM)对污染传输与发展过程进行定量评估.结果表明:3月25日珠三角地区产生的O_(3)污染气团在高空残留,25日夜间至26日上午输送至韶关并下传,高空水平输送至韶关上空的O_(3)有66.1%下传,物理输送过程起主导作用;26日来自广州､东莞､清远､佛山的O_(3)比25日增加了12倍,区域输送是韶关市异常O_(3)污染的主要贡献,广州市与东莞市是区域输送的主要源地;韶关市地处盆地,易受到域外输送影响,O_(3)污染防治应注重区域的协同减排,联防联控.The WRF-CMAQ model was used to simulate aregional O_(3)pollution process in Guangdong Province from March 25 to 27,2021,and the simulation results were good.While O_(3)pollution in the Pearl River Delta(PRD)subsided,O_(3)pollution abnormally appeared in Shaoguan City.Taking Shaoguan as the main focus,the process of O_(3)transport from the PRD to Shaoguan was analyzed.The Process Analysis(PA)and Integrated Source Apportionment Method(ISAM)in the CMAQ model were used to assess the pollution transport and development process quantitatively.The results show that O_(3)polluted air mass generated in the PRD region remained in the upper air on March 25 and was transported to Shaoguan from the night of March 25 to the morning of March 26.66.1%of O_(3)in the upper level from outside Shaoguan was transmitted down to the ground,and the physical transport process played a dominant role.On the 26th,O_(3)from Guangzhou,Dongguan,Qingyuan,and Foshan increased by 12times compared with the 25th.Regional transport was the main contributor to the abnormal O_(3)pollution in Shaoguan.Guangzhou and Dongguan were the primary sources of regional transport.Shaoguan,a city located in the basin,is easily affected by external transport,thus regionally coordinated emission reduction and joint prevention of O_(3)should be of concern.

关 键 词：韶关 数值模型(WRF/CMAQ) 过程分析 来源解析 

分 类 号：X515[环境科学与工程—环境工程]