Chemical discrimination of the particulate and gas phases of miniCAST exhausts using a two-filter collection method
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Published:2020-02-28
Issue:2
Volume:13
Page:951-967
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ISSN:1867-8548
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Container-title:Atmospheric Measurement Techniques
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language:en
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Short-container-title:Atmos. Meas. Tech.
Author:
Ngo Linh Dan, Duca DumitruORCID, Carpentier YvainORCID, Noble Jennifer A.ORCID, Ikhenazene Raouf, Vojkovic Marin, Irimiea Cornelia, Ortega Ismael K., Lefevre Guillaume, Yon Jérôme, Faccinetto Alessandro, Therssen Eric, Ziskind Michael, Chazallon Bertrand, Pirim ClaireORCID, Focsa Cristian
Abstract
Abstract. Combustion of hydrocarbons produces both particulate- and gas-phase
emissions responsible for major impacts on atmospheric chemistry and human
health. Ascertaining the impact of these emissions, especially on human
health, is not straightforward because of our relatively poor knowledge of
how chemical compounds are partitioned between the particle and gas phases.
Accordingly, we propose coupling a two-filter sampling method with a
multi-technique analytical approach to fully characterize the particulate-
and gas-phase compositions of combustion by-products. The two-filter
sampling method is designed to retain particulate matter (elemental carbon
possibly covered in a surface layer of adsorbed molecules) on a first quartz
fiber filter while letting the gas phase pass through and then trap the
most volatile components on a second black-carbon-covered filter. All
samples thus collected are subsequently subjected to a multi-technique
analytical protocol involving two-step laser mass spectrometry (L2MS),
secondary ion mass spectrometry (SIMS), and micro-Raman spectroscopy. Using
the combination of this two-filter sampling–multi-technique approach in
conjunction with advanced statistical methods, we are able to unravel
distinct surface chemical compositions of aerosols generated with different
set points of a miniCAST burner. Specifically, we successfully discriminate
samples by their volatile, semi-volatile, and non-volatile polycyclic
aromatic hydrocarbon (PAH) contents and reveal how subtle changes in
combustion parameters affect particle surface chemistry.
Funder
Agence Nationale de la Recherche Région Hauts-de-France Institut National des Sciences de l'Univers, Centre National de la Recherche Scientifique
Publisher
Copernicus GmbH
Subject
Atmospheric Science
Reference59 articles.
1. An, Y. Z., Teng, S. P., Pei, Y. Q., Qin, J., Li, X., and Zhao, H.: An
experimental study of polycyclic aromatic hydrocarbons and soot emissions
from a GDI engine fueled with commercial gasoline, Fuel, 164, 160–171,
https://doi.org/10.1016/j.fuel.2015.10.007, 2016. 2. Atkinson, R. and Arey, J.: Atmospheric chemistry of gas-phase polycyclic
aromatic hydrocarbons: formation of atmospheric mutagens, Environ. Health
Persp., 102, 117–126, https://doi.org/10.1289/ehp.94102s4117, 1994. 3. Bandowe, B. A. M., Meusel, H., Huang, R., Ho, K., Cao, J., Hoffmann, T., and
Wilcke, W.: PM2.5-bound oxygenated PAHs, nitro-PAHs and parent-PAHs from the
atmosphere of a Chinese megacity: Seasonal variation, sources and cancer
risk assessment, Sci. Total Environ., 473–474, 77–87,
https://doi.org/10.1016/J.SCITOTENV.2013.11.108, 2014. 4. Bari, M. A., Baumbach, G., Kuch, B., and Scheffknecht, G.: Particle-phase
concentrations of polycyclic aromatic hydrocarbons in ambient air of rural
residential areas in southern Germany, Air Qual. Atmos. Hlth., 3,
103–116, https://doi.org/10.1007/s11869-009-0057-8, 2010. 5. Bentz, J. W. G., Goschnick, J., Schuricht, J., and Ache, H. J.:
Depth-resolved investigation of the element and compound inventory of
aerosol particles from outdoor air, Fresen. J. Anal. Chem., 353,
559–564, https://doi.org/10.1007/BF00321323, 1995.
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