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Article

Investigation of the Dynamism of Nanosized SOA Particle Formation in Indoor Air by a Scanning Mobility Particle Sizer and Proton-Transfer-Reaction Mass Spectrometry

Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Str. 80-233 Gdańsk, Poland
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Author to whom correspondence should be addressed.
Academic Editors: Mihkel Koel and Marek Tobiszewski
Molecules 2020, 25(9), 2202; https://doi.org/10.3390/molecules25092202
Received: 5 March 2020 / Revised: 1 May 2020 / Accepted: 4 May 2020 / Published: 8 May 2020
Terpenes are VOCs of particular importance, since they are emitted from a wide range of indoor sources and are considered to be precursors of Secondary Organic Aerosol (SOA) formation. It has been proven that SOA particles, especially nanosized ones, pose a threat to human health. In this research, experiments with the application of an environmental chamber and real-time measurement techniques were carried out to investigate in a complimentary way the formation of monoterpene oxidation products and nanosized SOA particles initiated by monoterpene ozonolysis. Proton-Transfer-Reaction Mass Spectrometry with a Time-Of-Flight analyzer (PTR-TOF-MS) and a Scanning Mobility Particle Sizer (SMPS) were applied to determine in real time the dynamism of the formation of the corresponding terpene ozonolysis products and submicron SOA particles. Results proved that firstly, oxidation products were formed, and then, they underwent nucleation and condensation, forming particles whose diameters grew with time. The oxidation products formed were different depending on the type of terpenes applied. The comparison of the results obtained during the experiments with gaseous standard mixtures and real samples commonly present and used in indoor air revealed that the diversified chemical composition of the emission source had implications for both the particle formation initiated by the oxidation of essential oil components and the chemical reactions occurring via the oxidation process. With the instrumentation utilized, the concentration changes at the level of a few ppbv could be monitored. View Full-Text
Keywords: monoterpenes; secondary organic aerosol; indoor air quality; PTR-TOF-MS; SMPS; real-time measurement techniques monoterpenes; secondary organic aerosol; indoor air quality; PTR-TOF-MS; SMPS; real-time measurement techniques
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MDPI and ACS Style

Pytel, K.; Marcinkowska, R.; Zabiegała, B. Investigation of the Dynamism of Nanosized SOA Particle Formation in Indoor Air by a Scanning Mobility Particle Sizer and Proton-Transfer-Reaction Mass Spectrometry. Molecules 2020, 25, 2202. https://doi.org/10.3390/molecules25092202

AMA Style

Pytel K, Marcinkowska R, Zabiegała B. Investigation of the Dynamism of Nanosized SOA Particle Formation in Indoor Air by a Scanning Mobility Particle Sizer and Proton-Transfer-Reaction Mass Spectrometry. Molecules. 2020; 25(9):2202. https://doi.org/10.3390/molecules25092202

Chicago/Turabian Style

Pytel, Klaudia, Renata Marcinkowska, and Bożena Zabiegała. 2020. "Investigation of the Dynamism of Nanosized SOA Particle Formation in Indoor Air by a Scanning Mobility Particle Sizer and Proton-Transfer-Reaction Mass Spectrometry" Molecules 25, no. 9: 2202. https://doi.org/10.3390/molecules25092202

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