Preprints
https://doi.org/10.5194/acp-2021-216
https://doi.org/10.5194/acp-2021-216

  23 Apr 2021

23 Apr 2021

Review status: a revised version of this preprint was accepted for the journal ACP and is expected to appear here in due course.

Mass spectral characterization of secondary organic aerosol from urban lifestyle sources emissions

Wenfei Zhu1, Song Guo1,2, Min Hu1, Zirui Zhang1, Hui Wang1, Ying Yu1, Zheng Chen1, Ruizhe Shen1, Rui Tan1, Kai Song1, Kefan Liu1, Rongzhi Tang1, Yi Liu1, Shengrong Lou3, Yuanju Li1, Wenbin Zhang4, Zhou Zhang4, Shijin Shuai4, Hongming Xu4, Shuangde Li5, Yunfa Chen5, Francesco Canonaco6, and Andre S. H. Prévôt6 Wenfei Zhu et al.
  • 1State 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 P. R.
  • 2Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science & Technology, Nanjing 210044, China P. R.
  • 3State Environmental Protection Key Laboratory of Formation of Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai 200233, China P. R.
  • 4State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China P. R.
  • 5State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China P. R.
  • 6Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), Villigen 5232, Switzerland

Abstract. In the present work, we conducted experiments of secondary organic aerosol (SOA) formation from urban lifestyle sources (cooking and vehicle) to characterize the mass spectral features of primary organic aerosol (POA) and SOA using an high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS). Our results showed that the cooking styles have greater impact on aged COA mass spectra than oxidation condition. However, the oxidation conditions affect the aged HOA spectra more significantly than vehicle operation conditions. In our study, we use mass spectra similarity analysis and positive matrix factorization (PMF) analysis to establish the POA and SOA mass spectra of these two typical lifestyle sources. These mass spectra are used as source constraints in a multilinear engine (ME-2) model to apportion the OA sources in the atmosphere. Comparing with the traditional ambient PMF results, the improved ME-2 model can better quantify the contribution of POA and SOA from life-style sources. Our work, for the first time, establishes the vehicle and cooking SOA source profiles, and can be further used in the OA source apportionment in the ambient atmosphere.

Wenfei Zhu et al.

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2021-216', Anonymous Referee #1, 18 May 2021
  • RC2: 'Comment on acp-2021-216', Anonymous Referee #2, 18 Jun 2021

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2021-216', Anonymous Referee #1, 18 May 2021
  • RC2: 'Comment on acp-2021-216', Anonymous Referee #2, 18 Jun 2021

Wenfei Zhu et al.

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Short summary
The experiments of primary emissions and secondary organic aerosol (SOA) formation from urban lifestyle sources (cooking and vehicle) were conducted. The mass spectral features of primary organic aerosol (POA) and SOA were characterized by using high-resolution time-of-flight aerosol mass spectrometer. The work, for the first time, establishes the vehicle and cooking SOA source profiles, and can be further used as source constraints in the OA source apportionment in the ambient atmosphere.
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