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Published, Version of Record (VoR)Open Access (License Unspecified), Open
Journal article
Secondary organic aerosol formation initiated by -terpineol ozonolysis in indoor air
Indoor air, v 26(6), pp 939-952
01 Dec 2016
PMID: 26609907
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Secondary organic aerosol (SOA) owing to reactive organic gas (ROG) ozonolysis can be an important indoor particle source. However, SOA formation owing to ozonolysis of -terpineol, which is emitted by consumer product usage and reacts strongly with ozone, has not been systematically quantified. Therefore, we conducted 21 experiments to investigate the SOA formation initiated by -terpineol ozonolysis for high (0.84h(-1)), moderate (0.61h(-1)), and low (0.36h(-1)) air exchange rates (AER), which is the frequency with which indoor is replaced by outdoor air. -Terpineol concentrations of 6.39 to 226ppb were combined with high ozone (similar to 25ppm) to ensure rapid and complete ozonolysis. No reactants were replenished, so SOA peaked quickly and then decreased due to AER and surface losses, and peak SOA ranged from 2.03 to 281g/m(3) at unit density. SOA mass formation was parameterized with the aerosol mass fraction (AMF), a.k.a. the SOA yield, and AMFs ranged from 0.056 to 0.24. The AMFs strongly and positively correlated with reacted -terpineol, whereas they weakly and negatively correlated with higher AERs. One-product, two-product, and volatility basis set (VBS) models were fit to the AMF data. Predictive modeling demonstrated that -terpineol ozonolysis could meaningfully form SOA in indoor air.
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Details
- Title
- Secondary organic aerosol formation initiated by -terpineol ozonolysis in indoor air
- Creators
- Y. Yang - Drexel UniversityM. S. Waring - Drexel University
- Publication Details
- Indoor air, v 26(6), pp 939-952
- Publisher
- Wiley
- Number of pages
- 14
- Grant note
- 1055584 / U.S. National Science Foundation; National Science Foundation (NSF) 1055584 / Directorate For Engineering; National Science Foundation (NSF); NSF - Directorate for Engineering (ENG)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Psychiatry; Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:000387808200010
- Scopus ID
- 2-s2.0-84956676759
- Other Identifier
- 991019168153904721
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- Web of Science research areas
- Construction & Building Technology
- Engineering, Environmental
- Public, Environmental & Occupational Health