DOAS measurement of glyoxal as an indicator for fast VOC chemistry in urban air

DOAS measurement of glyoxal as an indicator for fast VOC chemistry in urban air

We present the first direct measurements of glyoxal (CHOCHO) in the atmosphere, and demonstrate that glyoxal measurements are possible by differential optical absorption spectroscopy (DOAS). Glyoxal was routinely detected during the daytime in Mexico City, where mixing ratios ranged from

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Veröffentlicht in:Geophysical research letters 2005-04, Vol.32 (8), p.L08806.1-n/a
Hauptverfasser: Volkamer, Rainer, Molina, Luisa T., Molina, Mario J., Shirley, Terry, Brune, William H.
Format: Artikel
Sprache:eng
Schlagworte:
Absorption spectroscopy
Aerosols
Atmospheres
Atmospherics
Daytime
Diurnal variations
Earth atmosphere
Earth sciences
Earth, ocean, space
Exact sciences and technology
Geophysics
Mixing ratios
Oxidation
Ozone
Satellites
Smog
Sun
Sunrise
Vehicles
Volatile Organic Compounds
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Beschreibung
Zusammenfassung:We present the first direct measurements of glyoxal (CHOCHO) in the atmosphere, and demonstrate that glyoxal measurements are possible by differential optical absorption spectroscopy (DOAS). Glyoxal was routinely detected during the daytime in Mexico City, where mixing ratios ranged from
ISSN:0094-8276
1944-8007
DOI:10.1029/2005GL022616