The behavior of some organic nitrates at Boulder and Niwot Ridge, Colorado
作者： B. A. Ridley , J. D. Shetter , J. G. Walega , S. Madronich , C. M. Elsworth
关键词: Atmospheric chemistry 、 Peroxyacetyl nitrate 、 Mixing ratio 、 Atmospheric sciences 、 Nitrogen 、 Environmental science 、 Niwot Ridge 、 Nitrate 、 Diurnal temperature variation 、 Hydrology 、 Methyl nitrate
摘要: Observations show that the ratio of peroxypropionyl nitrate (PPN) to peroxyacetyl (PAN) increases a maximum in afternoon period at Boulder and Niwot Ridge. In air easterly flow reaching Ridge, average PPN/PAN ratios were near 15%, while westerly or more remote continental air, was much smaller averaged 4%. Relative PAN-mixing ratios, methyl (MN) less than 0.2% 0.9% night masses. The sum ambient n-propyl (NPN) 2-butyl (2BN) mixing also small, diurnal Ridge being about 2% ratio. contribution MN + PPN (NPN+2BN) total odd nitrogen budget most 4%, leaving 21-27% shortfall between individual measurements species (NO{sub y}) measurement.
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