TY - JOUR A1 - Phillips, Gavin J. A1 - Thieser, Jim A1 - Tang, Mingjin A1 - Sobanski, Nicolas A1 - Schuster, Gerhard A1 - Fachinger, Johannes A1 - Drewnick, Frank A1 - Borrmann, Stephan A1 - Bingemer, Heinz A1 - Lelieveld, Jos A1 - Crowley, John N. T1 - Estimating N₂O₅ uptake coefficients using ambient measurements of NO₃, N₂O₅, ClNO₂ and particle-phase nitrate T2 - Atmospheric chemistry and physics. Discussions N2 - We present an estimation of the uptake coefficient (γ) and yield of nitryl chloride (ClNO2) (f) for the heterogeneous processing of dinitrogen pentoxide (N2O5) using simultaneous measurements of particle and trace gas composition at a semi-rural, non-coastal, mountain site in the summer of 2011. The yield of ClNO2 varied between (0.035 ± 0.027) and (1.38 ± 0.60) with a campaign average of (0.49 ± 0.35). The large variability in f reflects the highly variable chloride content of particles at the site. Uptake coefficients were also highly variable with minimum, maximum and average γ values of 0.004, 0.11 and 0.028 ± 0.029, respectively, with no significant correlation with particle composition, but a weak dependence on relative humidity. The uptake coefficients obtained are compared to existing parameterisations based on laboratory datasets and with other values obtained by analysis of field data. Y1 - 2016 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/42010 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-420108 UR - http://www.atmos-chem-phys.net/16/13231/2016 SN - 1680-7375 SN - 1680-7367 N1 - © Author(s) 2016. CC-BY 3.0 License. VL - 16 SP - 1 EP - 34 PB - European Geosciences Union CY - Katlenburg-Lindau ER -