Articles | Volume 20, issue 5
Atmos. Chem. Phys., 20, 2781–2794, 2020
https://doi.org/10.5194/acp-20-2781-2020

Special issue: In-depth study of air pollution sources and processes within...

Atmos. Chem. Phys., 20, 2781–2794, 2020
https://doi.org/10.5194/acp-20-2781-2020
Research article
06 Mar 2020
Research article | 06 Mar 2020

Morphology and size of the particles emitted from a gasoline-direct-injection-engine vehicle and their ageing in an environmental chamber

Jiaoping Xing et al.

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Latest update: 06 Feb 2023
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Short summary
Our results highlight the contribution of gasoline-direct-injection (GDI) vehicles to aerosols, both primary and secondary. The major particles from GDI vehicles are organic and soot particles; they actively participate in chemical conversions in the atmosphere, leading to morphology and composition changes in hours. Rapid ageing could be attributable to the acid-catalysed mechanism and high concentrations of gaseous pollutants. These results would be beneficial for control of PM2.5 pollution.
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