| Predicting secondary organic aerosol formation from terpenoid ozonolysis with varying yields in indoor environments. | |
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MedLine Citation:
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PMID: 22372506 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The ozonolysis of terpenoids generates secondary organic aerosol (SOA) indoors. Models of varying complexity have been used to predict indoor SOA formation, and many models use the SOA yield, which is the ratio of the mass of produced SOA and the mass of consumed reactive organic gas. For indoor simulations, the SOA yield has been assumed as a constant, even though it depends on the concentration of organic particles in the air, including any formed SOA. We developed two indoor SOA formation models for single terpenoid ozonolysis, with yields that vary with the organic particle concentration. The models have their own strengths and were in agreement with published experiments for d-limonene ozonolysis. Monte Carlo analyses were performed that simulated different residential and office environments to estimate ranges of SOA concentrations and yields for d-limonene and α-pinene ozonolysis occurring indoors. Results indicate that yields are highly variable indoors and are most influenced by background organic particles for steady state formation and indoor ozone concentration for transient peak formation. Additionally, a review of ozonolysis yields for indoor-relevant terpenoids in the literature revealed much uncertainty in their values at low concentrations typical of indoors. © 2012 John Wiley & Sons A/S. |
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Authors:
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Somayeh Youssefi; Michael S Waring |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-2-28 |
Journal Detail:
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Title: Indoor air Volume: - ISSN: 1600-0668 ISO Abbreviation: - Publication Date: 2012 Feb |
Date Detail:
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Created Date: 2012-2-29 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9423515 Medline TA: Indoor Air Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© 2012 John Wiley & Sons A/S. |
Affiliation:
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Drexel University, Department of Civil, Architectural and Environmental Engineering,3141 Chestnut St.Philadelphia, PA 19104, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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