| Title: | Review of the influencing factors of secondary organic aerosol formation and aging mechanism based on photochemical smog chamber simulation methods |
| Author(s): | Zhang Y; Cheng M; Gao J; Li J; |
| Address: | "State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China. Electronic address: gaojian@craes.org.cn" |
| DOI: | 10.1016/j.jes.2022.10.033 |
| ISSN/ISBN: | 1001-0742 (Print) 1001-0742 (Linking) |
| Abstract: | "The formation and aging mechanism of secondary organic aerosol (SOA) and its influencing factors have attracted increasing attention in recent years because of their effects on climate change, atmospheric quality and human health. However, there are still large errors between air quality model simulation results and field observations. The currently undetected components during the formation and aging of SOA due to the limitation of current monitoring techniques and the interactions among multiple SOA formation influencing factors might be the main reasons for the differences. In this paper, we present a detailed review of the complex dynamic physical and chemical processes and the corresponding influencing factors involved in SOA formation and aging. And all these results were mainly based the studies of photochemical smog chamber simulation. Although the properties of precursor volatile organic compounds (VOCs), oxidants (such as OH radicals), and atmospheric environmental factors (such as NO(x), SO(2), NH(3), light intensity, temperature, humidity and seed aerosols) jointly influence the products and yield of SOA, the nucleation and vapor pressure of these products were found to be the most fundamental aspects when interpreting the dynamics of the SOA formation and aging process. The development of techniques for measuring intermediate species in SOA generation processes and the study of SOA generation and aging mechanism in complex systems should be important topics of future SOA research" |
| Keywords: | Humans Aerosols/analysis Aging *Air Pollutants/analysis *Air Pollution Smog Formation and aging mechanism Photochemical smog chamber Secondary organic aerosol Volatile organic compounds; |
| Notes: | "MedlineZhang, Yujie Cheng, Miaomiao Gao, Jian Li, Junling eng Review Netherlands 2022/12/16 J Environ Sci (China). 2023 Jan; 123:545-559. doi: 10.1016/j.jes.2022.10.033. Epub 2022 Oct 30" |
