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Showing 1–5 of 5 results
Advanced filters: Author: Manjula R. Canagaratna Clear advanced filters

  • Experiments under upper-tropospheric conditions map the chemical formation of isoprene oxygenated organic molecules (important molecules for new particle formation) and reveal that relative radical ratios control their composition

    • Douglas M. Russell
    • Felix Kunkler
    • Joachim Curtius
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-14

  • Experiments performed in the CERN CLOUD chamber show that, under upper-tropospheric conditions, new atmospheric particle formation may be initiated by the reaction of hydroxyl radicals with isoprene emitted by rainforests.

    • Jiali Shen
    • Douglas M. Russell
    • Xu-Cheng He
    ResearchOpen Access
    Nature
    Volume: 636, P: 115-123

  • Organic aerosol particles are important to climate and human health but remain poorly characterized on account of their immense chemical complexity. Here, using both field and laboratory measurements of organic aerosol, we demonstrate the use of average carbon oxidation state for describing aerosol chemical properties and atmospheric transformations.

    • Jesse H. Kroll
    • Neil M. Donahue
    • Douglas R. Worsnop
    Research
    Nature Chemistry
    Volume: 3, P: 133-139

  • Nearly all organic carbon has now been quantified and characterized in a highly complex evolving atmospheric system, specifically, the multigenerational oxidation of α-pinene. It has been observed that initial addition of functional groups quickly gives way to fragmentation reactions, with organic carbon ultimately becoming sequestered in chemically resistant reservoirs: organic aerosols and long-lived gas-phase species.

    • Gabriel Isaacman-VanWertz
    • Paola Massoli
    • Jesse H. Kroll
    Research
    Nature Chemistry
    Volume: 10, P: 462-468

  • The link between biogenic volatile organic compounds in the atmosphere and their conversion to aerosol particles is unclear, but a direct reaction pathway is now described by which volatile organic compounds lead to low-volatility vapours that can then condense onto aerosol surfaces, producing secondary organic aerosol.

    • Mikael Ehn
    • Joel A. Thornton
    • Thomas F. Mentel
    Research
    Nature
    Volume: 506, P: 476-479