Articles | Volume 3, issue 2
https://doi.org/10.5194/ar-3-569-2025
https://doi.org/10.5194/ar-3-569-2025
Research article
 | 
27 Nov 2025
Research article |  | 27 Nov 2025

Differentiating between Euro 5 gasoline and diesel light-duty engine primary and secondary particle emissions using multivariate statistical analysis of high-resolution mass spectrometry (HRMS) fingerprints

Camille Noblet, Francois Lestremau, Adrien Dermigny, Nicolas Karoski, Claudine Chatellier, Jérôme Beaumont, Yao Liu, Boris Vansevenant, Jean-Luc Besombes, and Alexandre Albinet

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Cited articles

Alam, M. S., Zeraati-Rezaei, S., Liang, Z., Stark, C., Xu, H., MacKenzie, A. R., and Harrison, R. M.: Mapping and quantifying isomer sets of hydrocarbons ( C12) in diesel exhaust, lubricating oil and diesel fuel samples using GC × GC-ToF-MS, Atmos. Meas. Tech., 11, 3047–3058, https://doi.org/10.5194/amt-11-3047-2018, 2018. 
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Albinet, A., Nalin, F., Tomaz, S., Beaumont, J., and Lestremau, F.: A simple QuEChERS-like extraction approach for molecular chemical characterization of organic aerosols: application to nitrated and oxygenated PAH derivatives (NPAH and OPAH) quantified by GC–NICIMS, Anal. Bioanal. Chem., 406, 3131–3148, https://doi.org/10.1007/s00216-014-7760-5, 2014. 
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Allen, A. G., Nemitz, E., Shi, J. P., Harrison, R. M., and Greenwood, J. C.: Size distributions of trace metals in atmospheric aerosols in the United Kingdom, Atmos. Environ., 35, 4581–4591, https://doi.org/10.1016/S1352-2310(01)00190-X, 2001. 
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Vehicle emissions significantly impact air quality, but distinguishing between gasoline and diesel aerosol sources in the air is still difficult. This study used advanced chemical analysis and statistical methods to discover unique aerosol molecular markers from each vehicle type. By simulating real-world driving and atmospheric ageing, researchers found specific markers for both primary and secondary particle emissions, offering a promising new approach to improve air pollution source tracking.
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