New formation and fate of Isoprene SOA markers revealed by field data-constrained modeling
文献类型：期刊论文
| 作者 | Zhang, Jie1,2; Liu, Junyi3; Ding, Xiang4,5,6; He, Xiao7; Zhang, Tianle3; Zheng, Mei3; Choi, Minsu2; Isaacman-VanWertz, Gabriel8; Yee, Lindsay9; Zhang, Haofei10 |
| 刊名 | NPJ CLIMATE AND ATMOSPHERIC SCIENCE
 |
| 出版日期 | 2023-06-17 |
| 卷号 | 6期号:1页码:8 |
| ISSN号 | 2397-3722 |
| DOI | 10.1038/s41612-023-00394-3 |
| 英文摘要 | Particulate 2-methyltetrols (2-MT) and 2-methylglyceric acid (2-MG) are typically used to indicate the abundance of isoprene-derived secondary organic aerosols (SOA). However, their formation and fate are not fully understood. In this study, we showed that particulate 2-MT and 2-MG collected at multiple monitoring sites under a wide range of atmospheric and emission conditions, with concentrations spanning six orders of magnitudes, are well reproduced with an expanded isoprene-SOA scheme implemented into the Community Multiscale Air Quality (CMAQ) model. The scheme considers their three-phase (gas-aqueous-organic phase) partitioning, formation from acid-driven multiphase reactions, and degradation by OH radicals in the gas and aqueous phases. The model results reveal that a non-aqueous formation pathway or direct biogenic emission is needed to supplement the commonly assumed acid-driven multiphase reaction process to explain the observed 2-MT concentrations. This missing pathway contributes to 20-40% of 2-MT in areas with aerosol pH<2 and more than 70% under less acidic conditions (pH similar to 2-5), such as those encountered in the western US and China. The typical summertime gas-phase photochemical lifetimes of 2-MT and 2-MG are estimated to be 4-6 and 20-30 h, respectively, and their aqueous lifetimes are approximately 20-40 h. Our simulations show that predicted 2-MT is mainly influenced by its aqueous phase loss to OH, but 2-MG is more sensitive to gas phase OH loss due to the preferential partitioning of the two tracers in the aqueous and gas phases, respectively. |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001009434000002 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/74520]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Yu, Jian Zhen; Ying, Qi |
| 作者单位 | 1.Pacific Northwest Natl Lab, Richland, WA USA 2.Texas A&M Univ, Zachary Dept Civil & Environm Engn, College Stn, TX 77845 USA 3.Peking Univ, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100871, Peoples R China 4.Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 5.Chinese Acad Sci, Guangdong Prov Key Lab Environm Protect & Resourc, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Hong Kong Macao Joint Lab Environm Poll, Guangzhou 510640, Peoples R China 7.Hong Kong Univ Sci & Technol, Div Environm & Sustainabil, Kowloon, Clear Water Bay, Hong Kong 999077, Peoples R China 8.Virginia Polytech Inst & State Univ, Dept Civil & Environm Engn, Blacksburg, VA 24061 USA 9.Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA 10.Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA |
| 推荐引用方式 GB/T 7714 | Zhang, Jie,Liu, Junyi,Ding, Xiang,et al. New formation and fate of Isoprene SOA markers revealed by field data-constrained modeling[J]. NPJ CLIMATE AND ATMOSPHERIC SCIENCE,2023,6(1):8. |
| APA | Zhang, Jie.,Liu, Junyi.,Ding, Xiang.,He, Xiao.,Zhang, Tianle.,...&Ying, Qi.(2023).New formation and fate of Isoprene SOA markers revealed by field data-constrained modeling.NPJ CLIMATE AND ATMOSPHERIC SCIENCE,6(1),8. |
| MLA | Zhang, Jie,et al."New formation and fate of Isoprene SOA markers revealed by field data-constrained modeling".NPJ CLIMATE AND ATMOSPHERIC SCIENCE 6.1(2023):8. |
入库方式： OAI收割
来源：广州地球化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。