Articles | Volume 19, issue 22
Atmos. Chem. Phys., 19, 13945–13956, 2019
https://doi.org/10.5194/acp-19-13945-2019
Atmos. Chem. Phys., 19, 13945–13956, 2019
https://doi.org/10.5194/acp-19-13945-2019
Research article
20 Nov 2019
Research article | 20 Nov 2019

Molecular characterization of polar organic aerosol constituents in off-road engine emissions using Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS): implications for source apportionment

Min Cui et al.

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Cited articles

Cui, M., Chen, Y., Feng, Y., Li, C., Zheng, J., Tian, C., Yan, C., and Zheng, M.: Measurement of PM and its chemical composition in real-world emissions from non-road and on-road diesel vehicles, Atmos. Chem. Phys., 17, 6779–6795, https://doi.org/10.5194/acp-17-6779-2017, 2017. 
Deng, W., Hu, Q. H., Liu, T. Y., Wang, X. M., Zhang, Y. L., Song, W., Sun, Y. L., Bi, X. H., Yu, J. Z., Yang, W. G., Huang, X. Y., Zhang, Z., Huang, Z. H., He, Q. F., Mellouki, A., and George, C.: Primary particulate emissions and secondary organic aerosol (SOA) formation from idling diesel vehicle exhaust in China, Sci. Total Environ., 593, 462–469, 2017. 
Gao, S., Surratt, J. D., Knipping, E. M., Edgerton, E. S., Shahgholi, M., and Seinfeld, J. H.: Characterization of polar organic components in fine aerosols in the southeastern United States: Identity, origin, and evolution, J. Geophys. Res., 111, D14314, https://doi.org/10.1029/2005JD006601, 2006 
Hellier, P., Talibi, M., Eveleigh, A., and Ladommatos, N.: An overview of the effects of fuel molecular structure on the combustion and emissions characteristics of compression ignition engines, Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 232, 90–105, 2017. 
Hockaday, W. C., Grannas, A. M., Kim, S., and Hatcher, P. G.: Direct molecular evidence for the degradation and mobility of black carbon in soils from ultrahigh-resolution mass spectral analysis of dissolved organic matter from a fire-impacted forest soil, Org. Geochem., 37, 501–510, 2006. 
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Short summary
Refined source apportionment is urgently needed but hard to achieve due to a lack of specific biomarkers. Recently, Fourier transform ion cyclotron resonance mass spectrometry has been used to analyse the probable chemical structure of polar organic matter emitted from off-road engines. We found more condensed aromatic rings in S-containing compounds for HFO-fueled vessels, while more abundant aliphatic chains were observed in emissions from diesel equipment.
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