冬奥会期间张家口市崇礼赛区PM_(2.5)浓度数值模拟研究  

Numerical Analysis of PM_(2.5)Concentration in Chongli District of Zhangjiakou during Olympic Winter Games

作　　者：杨雨灵 赵娜 吴其重 赵玉广 焦亚音 Yang Yuling;Zhao Na;Wu Qizhong;Zhao Yuguang;Jiao Yayin(Hebei Meteorological Disaster Prevention and Environmental Meteorology Center,Shijiazhuang 050021,China;Key Laboratory of Meteorology and Ecological Environment of Hebei Province,Shijiazhuang 050021,China;College of Global Change and Earth System Science,Beijing Normal University,Beijing 100875,China)

机构地区：[1]河北省气象灾害防御和环境气象中心,河北石家庄050021 [2]河北省气象与生态环境重点实验室,河北石家庄050021 [3]北京师范大学全球变化与地球系统科学研究院,北京100875

出　　处：《环境科学与管理》2024年第9期153-158,共6页Environmental Science and Management

摘　　要：利用河北省CAMx模式系统对冬奥期间张家口市崇礼赛区的PM_(2.5)浓度进行模拟分析,定量评估冬奥期间崇礼赛区气象条件贡献、PM_(2.5)来源贡献、张家口和北京的减排量。首先,模式检验结果表明,河北省CAMx模式能较好地模拟出冬奥会前期(2021年10-12月)崇礼赛区PM_(2.5)浓度。其次,结论为与2019年-2021年同期相比,冬奥会期间崇礼赛区气象条件有利,使PM_(2.5)浓度下降16%;崇礼赛区PM_(2.5)主要来自于本地排放和张家口其他区县的传输,贡献分别为49.5%、24.5%;冬奥期间张家口、北京的减排量大约为总排放量的40%~50%。Taking Hebei province CAMx model system as an example,the PM_(2.5)concentration of Chongli district of Zhangjiakou during the 2022 Beijing Olympic Winter Games is simulated analyzed to quantitatively evaluate meteorological conditions contribution for PM_(2.5)sources in Chongli Distric and the emissions reduction and effect of Beijing and Zhangjiakou during the Olympic Winter Games.The CAMx model can effectively simulate the PM_(2.5)concentration in the Chongli during the October to December in 2021.The results show that the meteorological conditions in Chongli during the Olympic Winter Games were favorable,resulting in a 16%reduction in PM_(2.5)concentration compared with the same period from 2019 to 2021.PM_(2.5)pollutants in Chongli were mainly from local emission sources and transported from other counties of Zhangjiakou,with percentages of 49.5%,24.5%,respectively.Zhangjiakou and Beijing reduced about 40%~50%of total emissions during the Olympic Winter Games.

关 键 词：冬奥会 WRF-CAMx 气象条件贡献 PM_(2.5)来源贡献 减排量 

分 类 号：X511[环境科学与工程—环境工程]