中文版 | English
Title

New Particle Formation and Growth Dynamics for ?-Pinene Ozonolysis in a Smog Chamber and Implications for Ambient Environments

Author
Corresponding AuthorHung, Hui-Ming
Publication Years
2022-11-01
DOI
Source Title
ISSN
2472-3452
Abstract
Secondary organic aerosol (SOA) plays an important role in the Earth's energy balance and air quality. Understanding the formation of SOA accompanying the oxidation of volatile organic compounds (VOCs) remains incomplete because of the complex reactions and partitioning mechanisms. In this study, we investigated new particle formation (NPF) of SOA derived from alpha-pinene ozonolysis in the Harvard Environmental Chamber using the Model for Simulating Aerosol Interactions and Chemistry (MOSAIC) with the condensing species as two products, one of lower volatility (LVOC, 0.01 mu g m-3) and one of higher volatility (SVOC, 1.0 mu g m-3). A module for the classical nucleation theory was included. The surface tension (sigma), bulk diffusivity (Db), and mass accommodation coefficient (alpha) were varied until convergence between the simulated and observed particle number size distributions. alpha of LVOC was constrained as 0.03-0.1 with the reported sigma of alpha-pinene-ozonolysis-derived SOA and Tolman surface correction (similar to 23.0-27.5 mN m-1) and Db from 10-15.5 to >10-11 cm2 s-1. The observed particle number size distribution of alpha-pinene ozonolysis was well-simulated to derive the physical parameters, including sigma, Db, and alpha, suggesting the possible application to group the reported complex oxidation products and further application for other atmospheric-related oxidations for quantifying NPF.
Keywords
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
Others
Funding Project
Ministry of Science and Technology in Taiwan["109-2111-M-002-003","110-2111-M-002-010"] ; DOE[DE-AC06-76RLO 1830]
WOS Research Area
Chemistry ; Geochemistry & Geophysics
WOS Subject
Chemistry, Multidisciplinary ; Geochemistry & Geophysics
WOS Accession No
WOS:000890509900001
Publisher
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/417077
DepartmentSchool of Environmental Science and Engineering
Affiliation
1.Natl Taiwan Univ, Dept Atmospher Sci, Taipei 10617, Taiwan
2.Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA
3.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
4.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China
5.Pacific Northwest Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99354 USA
Recommended Citation
GB/T 7714
Chu, Ching-Wei,Zhai, Jinghao,Han, Yuemei,et al. New Particle Formation and Growth Dynamics for ?-Pinene Ozonolysis in a Smog Chamber and Implications for Ambient Environments[J]. ACS Earth and Space Chemistry,2022.
APA
Chu, Ching-Wei.,Zhai, Jinghao.,Han, Yuemei.,Ye, Jianhuai.,Zaveri, Rahul A..,...&Hung, Hui-Ming.(2022).New Particle Formation and Growth Dynamics for ?-Pinene Ozonolysis in a Smog Chamber and Implications for Ambient Environments.ACS Earth and Space Chemistry.
MLA
Chu, Ching-Wei,et al."New Particle Formation and Growth Dynamics for ?-Pinene Ozonolysis in a Smog Chamber and Implications for Ambient Environments".ACS Earth and Space Chemistry (2022).
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