Journal Article

PreJuSER-22392

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Aging of biogenic secondary organic aerosol via gas-phase OH radical reactions

Donahue, N. M. ; Henry, K. M. ; Mentel, T.FZJ* ; Kiendler-Scharr, A.FZJ* ; Spindler, C.FZJ* ; Bohn, B.FZJ* ; Brauers, T.FZJ* ; Dorn, H. P.FZJ* ; Fuchs, H.FZJ* ; Tillmann, R.FZJ* ; Wahner, A.FZJ* ; Saathoff, H. ; Naumann, K.-H. ; Möhler, O. ; Leisner, T. ; Müller, L. ; Reinnig, M.-C. ; Hoffmann, T. ; Salo, K. ; Hallquist, M. ; Frosch, M. ; Bilde, M. ; Tritscher, T. ; Barmet, P. ; Paraplan, A. P. ; DeCarlo, P. F. ; Dommen, J. ; Prevot, A. S. H. ; Baltensperger, U.

2012
Academy Washington, DC

This record in other databases:      

Please use a persistent id in citations: doi:10.1073/pnas.1115186109

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.

Keyword(s): Aerosols: chemistry (MeSH) ; Atmosphere (MeSH) ; Biogenesis (MeSH) ; Free Radicals (MeSH) ; Hydroxyl Radical (MeSH) ; Mass Spectrometry: methods (MeSH) ; Models, Chemical (MeSH) ; Organic Chemicals: chemistry (MeSH) ; Oxygen: chemistry (MeSH) ; Ozone (MeSH) ; Reproducibility of Results (MeSH) ; Solvents: chemistry (MeSH) ; Ultraviolet Rays (MeSH) ; Aerosols ; Free Radicals ; Organic Chemicals ; Solvents ; Ozone ; Hydroxyl Radical ; Oxygen

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Troposphäre (IEK-8)

Research Program(s):

1. Atmosphäre und Klima (P23)

Appears in the scientific report 2012

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Database coverage:
; BIOSIS Previews ; Current Contents - Agriculture, Biology and Environmental Sciences ; Current Contents - Life Sciences ; JCR ; NCBI Molecular Biology Database ; National-Konsortium ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection ; Zoological Record

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