TY  - JOUR
A1  - Starokozhev, Elena
A1  - Fries, Elke
A1  - Cycura, Anatoly
A1  - Püttmann, Wilhelm
T1  - Distribution of VOCs between air and snow at the Jungfraujoch high alpine research station, Switzerland, during CLACE 5 (winter 2006)
T2  - Atmospheric chemistry and physics. Discussions
N2  - Volatile organic compounds (VOCs) were analyzed in air and snow samples at the Jungfraujoch high alpine research station in Switzerland as part of CLACE 5 (CLoud and Aerosol Characterization Experiment) during February/March 2006. The fluxes of individual compounds in ambient air were calculated from gas phase concentrations and wind speed. The highest flux values were observed for the aromatic hydrocarbons benzene (14.3 µg m−2s−1), 1,3,5-trimethylbenzene (5.27 µg m−2s−1), toluene (4.40 µg m−2s−1), and the aliphatic hydrocarbons i-butane (7.87 µg m−2s−1), i-pentane (3.61 µg m−2s−1) and n-butane (3.23 µg m−2s−1). The fluxes were used to calculate the efficiency of removal of VOCs by snow, and the effect of temperature on removal efficiency. The removal efficiency was calculated at – 24◦C (−13.7◦C) and ranged from 37% (35%) for o-xylene to 93% (63%) for i-pentane. The distribution coefficients of VOCs between the air and snow phases were derived from published poly-parameter linear free energy relationship (pp-LFER) data, and compared with distribution coef- ficients obtained from the simultaneous measurements of VOC concentrations in air and snow at Jungfraujoch. The coefficients calculated from pp-LFER exceeded those values measured in the present study, which indicates more efficient snow scavenging of the VOCs investigated than suggested by theoretical predictions.
Y1  - 2017
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/44151
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-441512
UR  - http://www.atmos-chem-phys-discuss.net/8/14347/2008
SN  - 1680-7375
SN  - 1680-7367
N1  - © Author(s) 2008. This work is distributed under the Creative Commons Attribution 3.0 License.
VL  - 8
SP  - 14347
EP  - 14369
PB  - European Geosciences Union
CY  - Katlenburg-Lindau
ER  -