Articles | Volume 18, issue 9
https://doi.org/10.5194/acp-18-6293-2018
https://doi.org/10.5194/acp-18-6293-2018
Research article
 | 
04 May 2018
Research article |  | 04 May 2018

Low levels of nitryl chloride at ground level: nocturnal nitrogen oxides in the Lower Fraser Valley of British Columbia

Hans D. Osthoff, Charles A. Odame-Ankrah, Youssef M. Taha, Travis W. Tokarek, Corinne L. Schiller, Donna Haga, Keith Jones, and Roxanne Vingarzan

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Latest update: 22 May 2024
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Short summary
The nocturnal nitrogen oxides dinitrogen pentoxide (N2O5) and its heterogeneous uptake product nitryl chloride (ClNO2) can have profound impacts on air quality, yet their abundances and chemistry are only sparsely constrained by field measurements. Here, we present the first measurements of N2O5 and ClNO2 in the Lower Fraser Valley of British Columbia, Canada. Concentrations were lower than have been observed elsewhere. Morning peaks indicate higher ClNO2 production above the measurement site.
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