Articles | Volume 18, issue 16
Atmos. Chem. Phys., 18, 12045–12059, 2018
https://doi.org/10.5194/acp-18-12045-2018
Atmos. Chem. Phys., 18, 12045–12059, 2018
https://doi.org/10.5194/acp-18-12045-2018
Research article
22 Aug 2018
Research article | 22 Aug 2018

Direct measurements of NO3 reactivity in and above the boundary layer of a mountaintop site: identification of reactive trace gases and comparison with OH reactivity

Jonathan M. Liebmann et al.

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Cited articles

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Allan, B. J., Plane, J. M. C., Coe, H., and Shillito, J.: Observations of NO3 concentration profiles in the troposphere, J. Geophys. Res.-Atmos., 107, 4588, https://doi.org/10.1029/2002jd002112, 2002. 
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We present direct measurements of the summertime total reactivity (inverse lifetime) of NO3 towards organic trace gases at a rural mountain site. High daytime and low night-time values were found. The reactivity was dominated by reaction with monoterpenes and sufficiently high to compete with photolysis and reaction with NO during daytime. NO3 radical measurements from one night are presented. For the first time, direct measurements of OH and NO3 reactivity are compared.
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