气候变化领域集成服务门户(CCPortal): Formation and evolution of secondary organic aerosols derived from urban-lifestyle sources: Vehicle exhaust and cooking emissions

CCPortal

DOI	10.5194/acp-21-15221-2021
	Formation and evolution of secondary organic aerosols derived from urban-lifestyle sources: Vehicle exhaust and cooking emissions
	Zhang Z.; Zhu W.; Hu M.; Liu K.; Wang H.; Tang R.; Shen R.; Yu Y.; Tan R.; Song K.; Li Y.; Zhang W.; Zhang Z.; Xu H.; Shuai S.; Li S.; Chen Y.; Li J.; Wang Y.; Guo S.
发表日期	2021
ISSN	1680-7316
起始页码	15221
结束页码	15237
卷号	21 期号:19
英文摘要	Vehicle exhaust and cooking emissions are closely related to the daily life of city dwellers. Here, we defined the secondary organic aerosols (SOAs) derived from vehicle exhaust and cooking emissions as "urban-lifestyle SOAs"and simulated their formation using a Gothenburg potential aerosol mass reactor (Go:PAM). The vehicle exhaust and cooking emissions were separately simulated, and their samples were defined as "vehicle group"and "cooking group", respectively. After samples had been aged under 0.3-5.5gd of equivalent photochemical age, these two urban-lifestyle SOAs showed markedly distinct features in the SOA mass growth potential, oxidation pathways, and mass spectra. The SOA/POA (primary organic aerosol) mass ratios of vehicle groups (107) were 44 times larger than those of cooking groups (2.38) at about 2gd of equivalent photochemical age, according to the measurement of scanning mobility particle sizer (SMPS). A high-resolution time-of-flight aerosol mass spectrometer was used to perform a deeper analysis. It revealed that organics from the vehicle may undergo the alcohol and/or peroxide and carboxylic acid oxidation pathway to produce abundant less and more oxidized oxygenated OAs (LO-OOAs and MO-OOAs), and only a few primary hydrocarbon-like organic aerosols (HOAs) remain unaged. In contrast, organics from cooking may undergo the alcohol and/or peroxide oxidation pathway to produce moderate LO-OOAs, and comparable primary cooking organic aerosols (COAs) remain unaged. Our findings provide an insight into atmospheric contributions and chemical evolutions for urban-lifestyle SOAs, which could greatly influence the air quality and health risk assessments in urban areas. © Copyright:
语种	英语
scopus关键词	aerosol formation; air quality; exhaust emission; health risk; lifestyle; oxidation; urban area
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246512
作者单位	State Key Joint Laboratory of Environmental Simulation and Pollution Control, International Joint Laboratory for Regional Pollution Control, Ministry of Education (IJRC, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing, 210044, China; State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, 100084, China; State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China; Beijing Innovation Center for Engineering Sciences and Advanced Technology, Peking University, Beijing, 100871, China; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China
推荐引用方式 GB/T 7714	Zhang Z.,Zhu W.,Hu M.,et al. Formation and evolution of secondary organic aerosols derived from urban-lifestyle sources: Vehicle exhaust and cooking emissions[J],2021,21(19).
APA	Zhang Z..,Zhu W..,Hu M..,Liu K..,Wang H..,...&Guo S..(2021).Formation and evolution of secondary organic aerosols derived from urban-lifestyle sources: Vehicle exhaust and cooking emissions.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(19).
MLA	Zhang Z.,et al."Formation and evolution of secondary organic aerosols derived from urban-lifestyle sources: Vehicle exhaust and cooking emissions".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.19(2021).