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| Titel |
PTR-MS measurements of non-methane volatile organic compounds during an intensive field campaign at the summit of Mount Tai, China, in June 2006 |
| VerfasserIn |
S. Inomata, H. Tanimoto, S. Kato, J. Suthawaree, Y. Kanaya, P. Pochanart, Y. Liu, Z. Wang |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 10, no. 15 ; Nr. 10, no. 15 (2010-08-03), S.7085-7099 |
| Datensatznummer |
250008672
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| Publikation (Nr.) |
 copernicus.org/acp-10-7085-2010.pdf |
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| Zusammenfassung |
| Owing to recent industrialization, Central East China has become a
significant source of air pollutants. To examine the processes controlling
the chemistry and transport of tropospheric ozone, we performed on-line
measurements of non-methane volatile organic compounds (NMVOCs) as part of
an intensive field campaign at Mount Tai, China, in June 2006 (MTX2006),
using proton transfer reaction mass spectrometry (PTR-MS). Temporal
variations of NMVOCs were recorded in mass-scan mode from m/z17 to m/z 300 during
12–30 June 2006. More than thirty kinds of NMVOCs were detected up to m/z 160,
including alkenes, aromatics, alcohols, aldehydes, and ketones. In
combination with non-methane hydrocarbon data obtained by a gas
chromatography with flame ionization detection, it was found that oxygenated
VOCs were the predominant NMVOCs. Diurnal variations depending mainly on
local photochemistry were observed during 24–28 June. During the night of
12 June, we observed an episode of high NMVOCs concentrations attributed to
the burning of agricultural biomass. The ΔNMVOCs/ΔCO ratios
derived by PTR-MS measurements for this episode (with biomass burning (BB)
plume) and during 16–23 June (without BB plume) are compared to emission
ratios from various types of biomass burning as reviewed by Andreae and
Merlet (2001) and to ratios recently measured by PTR-MS in tropical forests
(Karl et al., 2007) and at urban sites (Warneke et al., 2007). |
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