Articles | Volume 8, issue 2
Atmos. Meas. Tech., 8, 987–997, 2015
https://doi.org/10.5194/amt-8-987-2015
Atmos. Meas. Tech., 8, 987–997, 2015
https://doi.org/10.5194/amt-8-987-2015

Research article 27 Feb 2015

Research article | 27 Feb 2015

Measurements of CH3O2NO2 in the upper troposphere

B. A. Nault et al.

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Short summary
We report the first atmospheric measurement of methyl peroxy nitrate (CH3O2NO2) and describe an experimental strategy to obtain NO2 observations free of methyl peroxy nitrate (CH3O2NO2). The accuracy of the CH3O2NO2 measurements are (+/- 40%) with a LOD of 15 pptv/min. We observe that CH3O2NO2 is ubiquitous in the upper troposphere with median mixing ratios of 100 to 200 pptv, and its composition to the total NOy budget is comparable to HNO3.