High-resolution Simulation Dataset of Hourly PM_(2.5)Chemical Composition in China(CAQRA-aerosol)from 2013 to 2020

作     者：Lei KONG Xiao TANG Jiang ZHU Zifa WANG Bing LIU Yuanyuan ZHU Lili ZHU Duohong CHEN Ke HU Huangjian WU Qian WU Jin SHEN Yele SUN Zirui LIU Jinyuan XIN Dongsheng JI Mei ZHENG 

作者机构：Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China University of Chinese Academy of SciencesBeijing 100049China China National Environmental Monitoring CentreBeijing 100012China Guangdong Ecological Environment Monitoring CentreGuangzhou 510308China Wuhan Environmental Monitoring CentreHubei 430015China Hubei Province Academy of Eco-environmental SciencesHubei 430072China Peking UniversityBeijing 100871China 

出 版 物：《Advances in Atmospheric Sciences》 (大气科学进展(英文版))

年 卷 期：2025年第42卷第4期

页      面：697-712页

核心收录：

学科分类：0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学] 

基　　金：support from the National Key Scientific and Technological Infrastructure project “Earth System Science Numerical Simulator Facility” (Earth Lab) sponsored by the National Natural Science Foundation of China (Grant Nos. 42175132, 92044303, and 42205119) the National Key R&D Program (Grant Nos. 2020YFA0607802 and 2022YFC3703003) the CAS Information Technology Program (Grant No. CAS-WX2021SF-0107-02) the fellowship of China Postdoctoral Science Foundation (Grant No. 2022M723093) 

主　　题：PM_(2.5)composition dataset black carbon organic carbon ammonium nitrate sulfate 

摘      要：Scientific knowledge on the chemical compositions of fine particulate matter(PM_(2.5)) is essential for properly assessing its health and climate effects,and for decisionmakers to develop efficient mitigation strategies.A high-resolution PM_(2.5) chemical composition dataset(CAQRA-aerosol)is developed in this study,which provides hourly maps of organic carbon,black carbon,ammonium,nitrate,and sulfate in China from 2013 to 2020 with a horizontal resolution of 15 *** paper describes the method,access,and validation results of this *** shows that CAQRA-aerosol has good consistency with observations and achieves higher or comparable accuracy with previous PM_(2.5) composition *** on CAQRA-aerosol,spatiotemporal changes of different PM_(2.5) compositions were investigated from a national viewpoint,which emphasizes different changes of nitrate from other *** estimated annual rate of population-weighted concentrations of nitrate is 0.23μg m^(−3)yr^(−1) from 2015 to 2020,compared with−0.19 to−1.1μg m^(−3)yr^(−1) for other *** whole dataset is freely available from the China Air Pollution Data Center(https://***/10.12423/capdb_***).