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Environ Sci Technol
| Title: | Photo-oxidation of Aromatic Hydrocarbons Produces Low-Volatility Organic Compounds |
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| Author(s): | Wang M; Chen D; Xiao M; Ye Q; Stolzenburg D; Hofbauer V; Ye P; Vogel AL; Mauldin RL; Amorim A; Baccarini A; Baumgartner B; Brilke S; Dada L; Dias A; Duplissy J; Finkenzeller H; Garmash O; He XC; Hoyle CR; Kim C; Kvashnin A; Lehtipalo K; Fischer L; Molteni U; Petaja T; Pospisilova V; Quelever LLJ; Rissanen M; Simon M; Tauber C; Tome A; Wagner AC; Weitz L; Volkamer R; Winkler PM; Kirkby J; Worsnop DR; Kulmala M; Baltensperger U; Dommen J; El-Haddad I; Donahue NM; |
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| Address: | "Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States. Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States. Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States. Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland. Faculty of Physics, University of Vienna, 1090 Vienna, Austria. Aerodyne Research, Incorporated, Billerica, Massachusetts 01821, United States. Institute for Atmospheric and Environmental Sciences, Goethe University Frankfurt, 60438, Frankfurt am Main, Germany. Department of Oceanic and Atmospheric Science, University of Colorado Boulder, Boulder, Colorado 80309, United States. CENTRA and FCUL, University of Lisbon, 1749-016 Lisbon, Portugal. Institute for Atmospheric and Earth System Research (INAR), University of Helsinki, 00014 Helsinki, Finland. Helsinki Institute of Physics, University of Helsinki, 00014 Helsinki, Finland. Department of Chemistry & CIRES, University of Colorado Boulder, Boulder, Colorado 80309, United States. Institute for Atmospheric and Climate Science, ETH Zurich, 8092 Zurich, Switzerland. Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States. Department of Environmental Engineering, Pusan National University, Busan, 46241, Republic of Korea. Lebedev Physical Institute, 119991 Moscow, Russia. Finnish meteorological Institute, Erik Palmenin aukio 1, 00560 Helsinki, Finland. Institute for Ion Physics and Applied Physics, University of Innsbruck, 6020 Innsbruck, Austria. Aerosol Physics Laboratory, Physics Unit, Tampere University, P.O. Box 1001, Tampere 33100, Finland. IDL-University of Beira Interior, Covilha 6201-001, Portugal. CERN, 1211 Geneva, Switzerland. Joint International Research Laboratory of Atmospheric and Earth System Sciences, Nanjing University, Nanjing 210044, P. R. China. Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China. Department of Engineering and Public Policy, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States" |
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| Journal Title: | Environ Sci Technol |
| Year: | 2020 |
| Volume: | 20200618 |
| Issue: | 13 |
| Page Number: | 7911 - 7921 |
| DOI: | 10.1021/acs.est.0c02100 |
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| ISSN/ISBN: | 1520-5851 (Electronic) 0013-936X (Linking) |
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| Abstract: | "To better understand the role of aromatic hydrocarbons in new-particle formation, we measured the particle-phase abundance and volatility of oxidation products following the reaction of aromatic hydrocarbons with OH radicals. For this we used thermal desorption in an iodide-adduct Time-of-Flight Chemical-Ionization Mass Spectrometer equipped with a Filter Inlet for Gases and AEROsols (FIGAERO-ToF-CIMS). The particle-phase volatility measurements confirm that oxidation products of toluene and naphthalene can contribute to the initial growth of newly formed particles. Toluene-derived (C(7)) oxidation products have a similar volatility distribution to that of alpha-pinene-derived (C(10)) oxidation products, while naphthalene-derived (C(10)) oxidation products are much less volatile than those from toluene or alpha-pinene; they are thus stronger contributors to growth. Rapid progression through multiple generations of oxidation is more pronounced in toluene and naphthalene than in alpha-pinene, resulting in more oxidation but also favoring functional groups with much lower volatility per added oxygen atom, such as hydroxyl and carboxylic groups instead of hydroperoxide groups. Under conditions typical of polluted urban settings, naphthalene may well contribute to nucleation and the growth of the smallest particles, whereas the more abundant alkyl benzenes may overtake naphthalene once the particles have grown beyond the point where the Kelvin effect strongly influences the condensation driving force" |
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| Keywords: | "Aerosols Gases *Hydrocarbons, Aromatic *Volatile Organic Compounds Volatilization;" |
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| Notes: | "MedlineWang, Mingyi Chen, Dexian Xiao, Mao Ye, Qing Stolzenburg, Dominik Hofbauer, Victoria Ye, Penglin Vogel, Alexander L Mauldin, Roy L 3rd Amorim, Antonio Baccarini, Andrea Baumgartner, Bernhard Brilke, Sophia Dada, Lubna Dias, Antonio Duplissy, Jonathan Finkenzeller, Henning Garmash, Olga He, Xu-Cheng Hoyle, Christopher R Kim, Changhyuk Kvashnin, Alexander Lehtipalo, Katrianne Fischer, Lukas Molteni, Ugo Petaja, Tuukka Pospisilova, Veronika Quelever, Lauriane L J Rissanen, Matti Simon, Mario Tauber, Christian Tome, Antonio Wagner, Andrea C Weitz, Lena Volkamer, Rainer Winkler, Paul M Kirkby, Jasper Worsnop, Douglas R Kulmala, Markku Baltensperger, Urs Dommen, Josef El-Haddad, Imad Donahue, Neil M eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2020/06/10 Environ Sci Technol. 2020 Jul 7; 54(13):7911-7921. doi: 10.1021/acs.est.0c02100. Epub 2020 Jun 18" |
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