02 Nov 2022
 | 02 Nov 2022
Status: this preprint is currently under review for the journal ACP.

Measurement report: Underestimated reactive organic gases from residential combustion: insights from a near-complete speciation

Yaqin Gao, Hongli Wang, Lingling Yuan, Shengao Jing, Bin Yuan, Guofeng Shen, Liang Zhu, Abigail Koss, Yingjie Li, Qian Wang, Dan Dan Huang, Shuhui Zhu, Shikang Tao, Shengrong Lou, and Cheng Huang

Abstract. Reactive organic gases (ROGs), as important precursors of secondary pollutants, are not well resolved as the chemical complexity challenged its quantification in many studies. Here, a near-complete speciation of ROGs with 125 species was developed and applied to evaluate their emission characteristics from residential solid fuel combustion. ROGs identified by the present method accounted for ~90 % of the “total” as the sum of species by Gas Chromatography equipped with a Mass Spectrometer and a Flame Ionization Detector (GC-MS/FID) and H3O+/NO+ Proton Transfer Reaction Time-of-Flight Mass Spectrometer (Vocus PTR-ToF-MS). The study further revealed that with 55 species, mainly oxygenated species, higher hydrocarbons with > 8 carbon atoms, and nitrogen-containing ones, previously un- and under-characterized, ROG emissions from residential coal and biomass combustion were underestimated by 44.3 % ± 11.8 % and 22.7 % ± 3.9 %, respectively, which further amplified the underestimation of secondary organic aerosols formation potential (SOAP) as high as 70.3 % ± 1.6 % and 89.2 % ± 1.0 %, respectively. The OH reactivity (OHR) of ROG emissions was also undervalued significantly. The study highlighted the importance of acquiring completely speciated measurement of ROGs from residential emissions, as well as other processes.

Yaqin Gao et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2022-711', Anonymous Referee #1, 21 Nov 2022
  • RC2: 'Comment on acp-2022-711', Anonymous Referee #2, 22 Nov 2022

Yaqin Gao et al.

Data sets

Data for speciation of ROG emissions from residential combustion Hongli Wang

Yaqin Gao et al.


Total article views: 398 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
301 85 12 398 36 9 19
  • HTML: 301
  • PDF: 85
  • XML: 12
  • Total: 398
  • Supplement: 36
  • BibTeX: 9
  • EndNote: 19
Views and downloads (calculated since 02 Nov 2022)
Cumulative views and downloads (calculated since 02 Nov 2022)

Viewed (geographical distribution)

Total article views: 408 (including HTML, PDF, and XML) Thereof 408 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
Latest update: 27 Mar 2023
Short summary
A near-complete speciation of Reactive organic gases (ROGs) emitted from residential combustion was developed to get more insights into their atmospheric effects. Oxygenated species, higher hydrocarbons and nitrogen-containing ones played larger roles in the emissions of residential combustion comparing with the common hydrocarbons. Based on the near-complete speciation, ROG emissions from residential combustion were largely underestimated, leading to more underestimation of their OHR and SOAP.