Speciated measurements of semivolatile and intermediate volatility organic compounds (S/IVOCs) in a pine forest during BEACHON-RoMBAS 2011
Understanding organic composition of gases and particles is essential to identifying sources and atmospheric processing leading to organic aerosols (OA), but atmospheric chemical complexity and the analytical techniques available often limit such analysis. Here we present speciated measurements of semivolatile and intermediate volatility organic compounds (S/IVOCs) using a novel dual-use instrument (SV-TAG-AMS) deployed at Manitou Forest, CO, during the Bio-hydro-atmosphere interactions of Energy, Aerosols, Carbon, H 2O, Organics & Nitrogen – Rocky Mountain Biogenic Aerosol Study (BEACHON-RoMBAS) 2011 campaign. This instrument provides on-line speciation of ambient organic compounds with 2 h time resolution. The species in this volatility range are complex in composition, but their chemical identities reveal potential sources. Observed compounds of biogenic origin include sesquiterpenes with molecular formula C 15H 24 (e.g., β-caryophyllene and longifolene), which were most abundant at night. A variety of other biogenic compounds were observed, including sesquiterpenoids with molecular formula C 15H 22, abietatriene and other terpenoid compounds. Many of these compounds have been identified in essential oils and branch enclosure studies but were observed in ambient air for the first time in our study. Semivolatile polycyclic aromatic hydrocarbons (PAHs) and alkanes were observed with highest concentrations during the day and the dependence onmore »
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[4]
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- Univ. of California, Berkeley, CA (United States); Univ. of Toronto, Toronto, ON (Canada)
- Aerosol Dynamics Inc., Berkeley, CA (United States)
- Aerodyne Research Inc., Billerica, MA (United States); Forschungszentrum Julich, Julich (Germany)
- Univ. of Colorado, Boulder, CO (United States)
- Univ. of California, Berkeley, CA (United States); Carnegie Mellon Univ., Pittsburgh, PA (United States)
- Univ. of Innsbruck, Innsbruck (Austria); National Center for Atmospheric Research, Boulder, CO (United States)
- National Center for Atmospheric Research, Boulder, CO (United States)
- Univ. of Innsbruck, Innsbruck (Austria)
- Aerosol Dynamics Inc., Berkeley, CA (United States); California Institute of Technology, Pasadena, CA (United States)
- Univ. of California, Berkeley, CA (United States); California Air Resources Board, Sacramento, CA (United States)
- Aerodyne Research Inc., Billerica, MA (United States); Univ. of Colorado, Boulder, CO (United States)
- Aerodyne Research Inc., Billerica, MA (United States)
- Univ. of California, Berkeley, CA (United States)
- Publication Date:
- Grant/Contract Number:
- FG02-08ER85160
- Type:
- Accepted Manuscript
- Journal Name:
- Atmospheric Chemistry and Physics (Online)
- Additional Journal Information:
- Journal Name: Atmospheric Chemistry and Physics (Online); Journal Volume: 16; Journal Issue: 2; Journal ID: ISSN 1680-7324
- Publisher:
- European Geosciences Union
- Research Org:
- Aerodyne Research, Inc., Billerica, MA (United States)
- Sponsoring Org:
- USDOE
- Country of Publication:
- United States
- Language:
- English
- OSTI Identifier:
- 1253625
Chan, A. W. H., Kreisberg, N. M., Hohaus, T., Campuzano-Jost, P., Zhao, Y., Day, D. A., Kaser, L., Karl, T., Hansel, A., Teng, A. P., Ruehl, C. R., Sueper, D. T., Jayne, J. T., Worsnop, D. R., Jimenez, J. L., Hering, S. V., and Goldstein, A. H.. Speciated measurements of semivolatile and intermediate volatility organic compounds (S/IVOCs) in a pine forest during BEACHON-RoMBAS 2011. United States: N. p.,
Web. doi:10.5194/acp-16-1187-2016.
Chan, A. W. H., Kreisberg, N. M., Hohaus, T., Campuzano-Jost, P., Zhao, Y., Day, D. A., Kaser, L., Karl, T., Hansel, A., Teng, A. P., Ruehl, C. R., Sueper, D. T., Jayne, J. T., Worsnop, D. R., Jimenez, J. L., Hering, S. V., & Goldstein, A. H.. Speciated measurements of semivolatile and intermediate volatility organic compounds (S/IVOCs) in a pine forest during BEACHON-RoMBAS 2011. United States. doi:10.5194/acp-16-1187-2016.
Chan, A. W. H., Kreisberg, N. M., Hohaus, T., Campuzano-Jost, P., Zhao, Y., Day, D. A., Kaser, L., Karl, T., Hansel, A., Teng, A. P., Ruehl, C. R., Sueper, D. T., Jayne, J. T., Worsnop, D. R., Jimenez, J. L., Hering, S. V., and Goldstein, A. H.. 2016.
"Speciated measurements of semivolatile and intermediate volatility organic compounds (S/IVOCs) in a pine forest during BEACHON-RoMBAS 2011". United States.
doi:10.5194/acp-16-1187-2016. https://www.osti.gov/servlets/purl/1253625.
@article{osti_1253625,
title = {Speciated measurements of semivolatile and intermediate volatility organic compounds (S/IVOCs) in a pine forest during BEACHON-RoMBAS 2011},
author = {Chan, A. W. H. and Kreisberg, N. M. and Hohaus, T. and Campuzano-Jost, P. and Zhao, Y. and Day, D. A. and Kaser, L. and Karl, T. and Hansel, A. and Teng, A. P. and Ruehl, C. R. and Sueper, D. T. and Jayne, J. T. and Worsnop, D. R. and Jimenez, J. L. and Hering, S. V. and Goldstein, A. H.},
abstractNote = {Understanding organic composition of gases and particles is essential to identifying sources and atmospheric processing leading to organic aerosols (OA), but atmospheric chemical complexity and the analytical techniques available often limit such analysis. Here we present speciated measurements of semivolatile and intermediate volatility organic compounds (S/IVOCs) using a novel dual-use instrument (SV-TAG-AMS) deployed at Manitou Forest, CO, during the Bio-hydro-atmosphere interactions of Energy, Aerosols, Carbon, H2O, Organics & Nitrogen – Rocky Mountain Biogenic Aerosol Study (BEACHON-RoMBAS) 2011 campaign. This instrument provides on-line speciation of ambient organic compounds with 2 h time resolution. The species in this volatility range are complex in composition, but their chemical identities reveal potential sources. Observed compounds of biogenic origin include sesquiterpenes with molecular formula C15H24 (e.g., β-caryophyllene and longifolene), which were most abundant at night. A variety of other biogenic compounds were observed, including sesquiterpenoids with molecular formula C15H22, abietatriene and other terpenoid compounds. Many of these compounds have been identified in essential oils and branch enclosure studies but were observed in ambient air for the first time in our study. Semivolatile polycyclic aromatic hydrocarbons (PAHs) and alkanes were observed with highest concentrations during the day and the dependence on temperature suggests the role of an evaporative source. Using statistical analysis by positive matrix factorization (PMF), we classify observed S/IVOCs by their likely sources and processes, and characterize them based on chemical composition. The total mass concentration of elutable S/IVOCs was estimated to be on the order of 0.7 µg m–3 and their volatility distributions are estimated for modeling aerosol formation chemistry.},
doi = {10.5194/acp-16-1187-2016},
journal = {Atmospheric Chemistry and Physics (Online)},
number = 2,
volume = 16,
place = {United States},
year = {2016},
month = {2}
}
- Free Publicly Accessible Full Text
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Accepted Manuscript (DOE)
- Publisher's Version of Record
- https://doi.org/10.5194/acp-16-1187-2016