Observations of total peroxy nitrates and aldehydes: measurement interpretation and inference of OH radical concentrations
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Observations of total peroxy nitrates and aldehydes: measurement interpretation and inference of OH radical concentrations
We describe measurements of total peroxy nitrates (6PNs), NO2, O3 and several aldehydes at Granite Bay, California, during the Chemistry and Transport of the Sacramento Urban Plume-2001 (CATSUP 2001) campaign, from 19 July–16 September 2001. We observed a strong photochemically driven variation of 6PNs during the day with the median of 1.2 ppb at noon. Acetaldehyde, pentanal, hexanal and methac...
متن کاملObservations of total peroxy nitrates and aldehydes
1 Dept. of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA 2 Dept. of Environmental Science, Policy and Management, University of California, Berkeley, Berkeley, CA 94720, USA 3 Dept. of Earth and Planetary Science, Univ. of California, Berkeley, Berkeley, CA 94720, USA 4 Environment Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA * n...
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Peroxy radical chemistry and OH radical production during the NO3-initiated oxidation of isoprene
Peroxy radical reactions (RO2 + RO2) from the NO3-initiated oxidation of isoprene are studied with both gas chromatography and a chemical ionization mass spectrometry technique that allows for more specific speciation of products than in previous studies of this system. We find high nitrate yields (∼ 80 %), consistent with other studies. We further see evidence of significant hydroxyl radical (...
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ژورنال
عنوان ژورنال: Atmospheric Chemistry and Physics
سال: 2007
ISSN: 1680-7324
DOI: 10.5194/acp-7-1947-2007