Open AccessTemperature dependence of heterogeneous uptake of N 2 O 5 by ammonium sulfate aerosol
Author(s) -
Griffiths Paul T.,
Anthony Cox R.
Publication year - 2009
Publication title -
atmospheric science letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.951
H-Index - 45
ISSN - 1530-261X
DOI - 10.1002/asl.225
Subject(s) - ammonium sulfate , sulfate , ammonium , chemistry , aerosol , sulfate aerosol , inorganic chemistry , hydrogen , atmospheric temperature range , range (aeronautics) , analytical chemistry (journal) , environmental chemistry , materials science , chromatography , meteorology , organic chemistry , physics , composite material
We present laboratory measurements of the dependence of the uptake coefficient γ on temperature for removal of the NO x reservoir N 2 O 5 by sub‐micron aerosols containing ammonium sulfate and ammonium hydrogen sulfate. Uptake coefficients were measured over the range 263–303 K at 50% RH, which varied in the range 0.005–0.036. A simple negative dependence of uptake on temperature is observed for ammonium sulfate over this range, while the form of the temperature dependence of uptake by ammonium hydrogen sulfate is more complex. The results consolidate those of an earlier less definitive study of the temperature effect on N 2 O 5 uptake. Copyright © 2009 Royal Meteorological Society