Response of warm season secondary pollutants to emissions and meteorology in the North China Plain region during 2018-2022

作     者：Yueqi Gao Siyu Wang Zhaolei Zhang Wenxuan Yu Shuai Wang Shengqiang Zhu Peng Wang Yan Li Yele Sun Hongliang Zhang Yueqi Gao;Siyu Wang;Zhaolei Zhang;Wenxuan Yu;Shuai Wang;Shengqiang Zhu;Peng Wang;Yan Li;Yele Sun;Hongliang Zhang

作者机构：Shanghai Key Laboratory of Atmospheric Particle Pollution and PreventionDepartment of Environmental Science&EngineeringFudan UniversityShanghaiChina Department of Atmospheric and Oceanic SciencesFudan UniversityShanghaiChina Shanghai Key Laboratory of Ocean-land-atmosphere Boundary Dynamics and Climate ChangeShanghaiChina IRDR ICoE on Risk Interconnectivity and Governance on Weather/Climate Extremes Impact and Public HealthFudan UniversityShanghaiChina State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric ChemistryInstitute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina College of Earth and Planetary SciencesUniversity of Chinese Academy of SciencesBeijingChina Institute of Eco-ChongmingShanghaiChina 

出 版 物：《Atmospheric and Oceanic Science Letters》 (大气和海洋科学快报（英文版）)

年 卷 期：2024年第17卷第4期

页      面：58-64页

核心收录：

学科分类：07[理学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 

基　　金：This work was supported by the National Key R&D Program of China[grant number 2022YFC370110] the National Natural Science Foundation of China[grant numbers 42077194,42061134008,and 42377098] the Shanghai International Science and Technology Partnership Project[grant number 21230780200] the Shanghai General Project[grant number 23ZR1406100] 

主　　题：PM_(2.5) 二次污染物 人为排放 气象 华北平原 

摘      要：自2013年起中国空气质量虽改善,但华北平原(NCP)重污染仍存在且二次污染加剧,而人们对其成因和变化了解有限.本研究利用2018-2022年数据,借助CMAQ模型探讨此污染响应.结果显示,在2018-2022年间,PM_(2.5)浓度显著下降31%-37%,O_(3)和NO_(2)的年下降速率分别为1%和0.5%SIA和SOA也显著减少,每年分别减少9%和6%PM_(2.5)主要因排放减少而下降,而O_(3)则受气象影响而波动.硫酸盐和铵下降的主因是减排,而硝酸盐对气象变化敏感排放和气象变化对SOA的总体减少同样重要,但人为SOA对排放控制敏感生物SOA易受气象变化影响.研究强调了控制人为排放对缓解NCP地区夏季二次污染的重要性.