Aging of biogenic secondary organic aerosol via gas-phase OH radical reactions

Neil M. Donahue; Kaytlin M. Henry; Thomas F. Mentel; Astrid Kiendler-Scharr; Christian Spindler; Birger Bohn; Theo Brauers; Hans P. Dorn; Hendrik Fuchs; Ralf Tillmann; Andreas Wahner; Harald Saathoff; Karl-Heinz Naumann; Ottmar Möhler; Thomas Leisner; Lars Müller; Marc-Christopher Reinnig; Thorsten Hoffmann; Kent Salo; Mattias Hallquist; Mia Frosch Mogensbæk Foverskov; Merete Bilde; Torsten Tritscher; Peter Barmet; Arnaud P. Praplan; Peter F. DeCarlo; Josef Dommen; Andre S.H. Prévôt; Urs Baltensperger

doi:10.1073/pnas.1115186109

Aging of biogenic secondary organic aerosol via gas-phase OH radical reactions

Neil M. Donahue, Kaytlin M. Henry, Thomas F. Mentel, Astrid Kiendler-Scharr, Christian Spindler, Birger Bohn, Theo Brauers, Hans P. Dorn, Hendrik Fuchs, Ralf Tillmann, Andreas Wahner, Harald Saathoff, Karl-Heinz Naumann, Ottmar Möhler, Thomas Leisner, Lars Müller, Marc-Christopher Reinnig, Thorsten Hoffmann, Kent Salo, Mattias HallquistMia Frosch Mogensbæk Foverskov, Merete Bilde, Torsten Tritscher, Peter Barmet, Arnaud P. Praplan, Peter F. DeCarlo, Josef Dommen, Andre S.H. Prévôt, Urs Baltensperger

Department of Chemistry

172 Citations (Scopus)

Abstract

The Multiple Chamber Aerosol Chemical Aging Study (MUCHACHAS) tested the hypothesis that hydroxyl radical (OH) aging significantly increases the concentration of first-generation biogenic secondary organic aerosol (SOA). OH is the dominant atmospheric oxidant, and MUCHACHAS employed environmental chambers of very different designs, using multiple OH sources to explore a range of chemical conditions and potential sources of systematic error. We isolated the effect of OH aging, confirming our hypothesis while observing corresponding changes in SOA properties. The mass increases are consistent with an existing gap between global SOA sources and those predicted in models, and can be described by a mechanism suitable for implementation in those models.

Original language	English
Journal	Proceedings of the National Academy of Sciences of the United States of America
Volume	109
Issue number	34
Pages (from-to)	13503-13508
Number of pages	6
ISSN	0027-8424
DOIs	https://doi.org/10.1073/pnas.1115186109
Publication status	Published - 21 Aug 2012

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Donahue, N. M., Henry, K. M., Mentel, T. F., Kiendler-Scharr, A., Spindler, C., Bohn, B., Brauers, T., Dorn, H. P., Fuchs, H., Tillmann, R., Wahner, A., Saathoff, H., Naumann, K-H., Möhler, O., Leisner, T., Müller, L., Reinnig, M-C., Hoffmann, T., Salo, K., ... Baltensperger, U. (2012). Aging of biogenic secondary organic aerosol via gas-phase OH radical reactions. Proceedings of the National Academy of Sciences of the United States of America, 109(34), 13503-13508. https://doi.org/10.1073/pnas.1115186109

Donahue, NM, Henry, KM, Mentel, TF, Kiendler-Scharr, A, Spindler, C, Bohn, B, Brauers, T, Dorn, HP, Fuchs, H, Tillmann, R, Wahner, A, Saathoff, H, Naumann, K-H, Möhler, O, Leisner, T, Müller, L, Reinnig, M-C, Hoffmann, T, Salo, K, Hallquist, M, Foverskov, MFM, Bilde, M, Tritscher, T, Barmet, P, Praplan, AP, DeCarlo, PF, Dommen, J, Prévôt, ASH & Baltensperger, U 2012, 'Aging of biogenic secondary organic aerosol via gas-phase OH radical reactions', Proceedings of the National Academy of Sciences of the United States of America, vol. 109, no. 34, pp. 13503-13508. https://doi.org/10.1073/pnas.1115186109

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title = "Aging of biogenic secondary organic aerosol via gas-phase OH radical reactions",

abstract = "The Multiple Chamber Aerosol Chemical Aging Study (MUCHACHAS) tested the hypothesis that hydroxyl radical (OH) aging significantly increases the concentration of first-generation biogenic secondary organic aerosol (SOA). OH is the dominant atmospheric oxidant, and MUCHACHAS employed environmental chambers of very different designs, using multiple OH sources to explore a range of chemical conditions and potential sources of systematic error. We isolated the effect of OH aging, confirming our hypothesis while observing corresponding changes in SOA properties. The mass increases are consistent with an existing gap between global SOA sources and those predicted in models, and can be described by a mechanism suitable for implementation in those models.",

author = "Donahue, {Neil M.} and Henry, {Kaytlin M.} and Mentel, {Thomas F.} and Astrid Kiendler-Scharr and Christian Spindler and Birger Bohn and Theo Brauers and Dorn, {Hans P.} and Hendrik Fuchs and Ralf Tillmann and Andreas Wahner and Harald Saathoff and Karl-Heinz Naumann and Ottmar M{\"o}hler and Thomas Leisner and Lars M{\"u}ller and Marc-Christopher Reinnig and Thorsten Hoffmann and Kent Salo and Mattias Hallquist and Foverskov, {Mia Frosch Mogensb{\ae}k} and Merete Bilde and Torsten Tritscher and Peter Barmet and Praplan, {Arnaud P.} and DeCarlo, {Peter F.} and Josef Dommen and Pr{\'e}v{\^o}t, {Andre S.H.} and Urs Baltensperger",

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doi = "10.1073/pnas.1115186109",

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T1 - Aging of biogenic secondary organic aerosol via gas-phase OH radical reactions

AU - Donahue, Neil M.

AU - Henry, Kaytlin M.

AU - Mentel, Thomas F.

AU - Kiendler-Scharr, Astrid

AU - Spindler, Christian

AU - Bohn, Birger

AU - Brauers, Theo

AU - Dorn, Hans P.

AU - Fuchs, Hendrik

AU - Tillmann, Ralf

AU - Wahner, Andreas

AU - Saathoff, Harald

AU - Naumann, Karl-Heinz

AU - Möhler, Ottmar

AU - Leisner, Thomas

AU - Müller, Lars

AU - Reinnig, Marc-Christopher

AU - Hoffmann, Thorsten

AU - Salo, Kent

AU - Hallquist, Mattias

AU - Foverskov, Mia Frosch Mogensbæk

AU - Bilde, Merete

AU - Tritscher, Torsten

AU - Barmet, Peter

AU - Praplan, Arnaud P.

AU - DeCarlo, Peter F.

AU - Dommen, Josef

AU - Prévôt, Andre S.H.

AU - Baltensperger, Urs

PY - 2012/8/21

Y1 - 2012/8/21

N2 - The Multiple Chamber Aerosol Chemical Aging Study (MUCHACHAS) tested the hypothesis that hydroxyl radical (OH) aging significantly increases the concentration of first-generation biogenic secondary organic aerosol (SOA). OH is the dominant atmospheric oxidant, and MUCHACHAS employed environmental chambers of very different designs, using multiple OH sources to explore a range of chemical conditions and potential sources of systematic error. We isolated the effect of OH aging, confirming our hypothesis while observing corresponding changes in SOA properties. The mass increases are consistent with an existing gap between global SOA sources and those predicted in models, and can be described by a mechanism suitable for implementation in those models.

AB - The Multiple Chamber Aerosol Chemical Aging Study (MUCHACHAS) tested the hypothesis that hydroxyl radical (OH) aging significantly increases the concentration of first-generation biogenic secondary organic aerosol (SOA). OH is the dominant atmospheric oxidant, and MUCHACHAS employed environmental chambers of very different designs, using multiple OH sources to explore a range of chemical conditions and potential sources of systematic error. We isolated the effect of OH aging, confirming our hypothesis while observing corresponding changes in SOA properties. The mass increases are consistent with an existing gap between global SOA sources and those predicted in models, and can be described by a mechanism suitable for implementation in those models.

U2 - 10.1073/pnas.1115186109

DO - 10.1073/pnas.1115186109

M3 - Journal article

C2 - 22869714

SN - 0027-8424

VL - 109

SP - 13503

EP - 13508

JO - Proceedings of the National Academy of Sciences of the United States of America

JF - Proceedings of the National Academy of Sciences of the United States of America

IS - 34

ER -

Aging of biogenic secondary organic aerosol via gas-phase OH radical reactions

Abstract

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