Secondary organic aerosol in urban China: A distinct chemical regime for air pollution studies

• 成果类型: Review
• 署名作者: Huang, Ru-Jin; Li, Yong Jie; Chen, Qi; Zhang, Yanli; Lin, Chunshui; Chan, Chak K.; Yu, Jian Zhen; de Gouw, Joost; Tong, Shengrui; Jiang, Jingkun; Wang, Weigang; Ding, Xiang; Wang, Xinming; Ge, Maofa; Zhou, Weijian; Worsnop, Doug; Boy, Michael; Bilde, Merete; Dusek, Ulrike; Carlton, Annmarie G.; Hoffmann, Thorsten; McNeill, V. Faye; Glasius, Marianne
• 署名单位: Chinese Academy of Sciences; Institute of Earth Environment, CAS; Xi'an Jiaotong University; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; University of Macau; University of Macau; Peking University; Chinese Academy of Sciences; Guangzhou Institute of Geochemistry, CAS; Chinese Academy of Sciences; Guangzhou Institute of Geochemistry, CAS; Hong Kong University of Science & Technology; Hong Kong University of Science & Technology; King Abdullah University of Science & Technology; University of Colorado System; University of Colorado Boulder; Chinese Academy of Sciences; Institute of Chemistry, CAS; Tsinghua University; Aerodyne Research; University of Helsinki; Lappeenranta-Lahti University of Technology LUT; Aarhus University; University of Groningen; University of California System; University of California Irvine; Johannes Gutenberg University of Mainz; Columbia University; Columbia University
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-9719
• DOI: 10.1126/science.adq2840
• 发表日期: 2025-08-28
• 关键词: hono daytime source; tianjin-hebei bth; severe haze; atmospheric aerosols; particulate matter; oxidation-state; aqueous-phase; nitrous-acid; nox; photooxidation

摘要

In the past decades, China has witnessed high air pollution associated with rapid economic development, although regulatory efforts have alleviated the situation since 2013. Haze events characterized by high particulate matter (PM) levels in China are not only of enormous magnitude but also represent a distinct chemical regime. Once driven by direct emissions, these high-PM episodes are now more affected by secondary aerosol, especially secondary organic aerosol (SOA). This Review synthesizes the state of the science of SOA formation in urban China, specifically (i) how the dominance of anthropogenic precursors affects SOA formation, (ii) what are the prevailing SOA formation mechanisms, and (iii) how important are the multipollutant and multiphase processes in SOA formation and evolution. We also highlight essential directions for future studies.