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Secondary Organic Aerosol Production from Terpene Ozonolysis. 2. Effect of NOx Concentration
Abstract
We report secondary organic aerosol (SOA) yields from the ozonolysis of alpha-pinene in the presence of NO and NO2. Experimental conditions are characterized by the [VOC]0/ [NOx]0 ratio (ppbC/ppb), which varies from approximately 1 to approximately 300. SOA yield is constant for [VOC]0/[NOx]0 > approximately 15 and decreases dramatically (by more than a factor of 4) as [VOC]0/[NOx]0 decreases. Aerosol production is completely suppressed in the presence of NO for [VOC]0/[NOx]0 < or = 4.5. Fouriertransform IR analysis of filter samples reveals that nitrate-containing species contribute significantly to the total aerosol mass at low [VOC]0/[NOx]0. Yield reduction is a result of the formation of a more volatile product distribution as [VOC]0/[NOx]0 decreases; we propose that the change in the product distribution is driven by changes in the gas-phase chemistry as NOx concentration increases. We also present two-product model parameters to describe aerosol production from the alpha-pinene/0/NOx system under both high- and low-NOx conditions.
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Cited by
A review of the anthropogenic influence on biogenic secondary organic aerosol
Hoyle, C. R., Boy, M., Donahue, N. M., Fry, J. L., Glasius, M., Guenther, A., Hallar, A. G., Huff Hartz, K., Petters, M. D., Petäjä, T., et al. (2011) · Atmospheric Chemistry and Physics · doi:10.5194/acp-11-321-2011 · Cited by 306
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Metadata
- Authors
- Presto, A. A., Huff Hartz, K. E., & Donahue, N. M.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2005-08-16
- Volume
- 39
- Issue
- 18
- Pages
- 7046-7054
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2332831387
- Cited by
- 282
- References
- 0
- FWCI
- 9.38
- Type
- journal article
- Language
- en
- Open access
- closed
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