Journal
ATMOSPHERIC ENVIRONMENT
Volume 37, Issue 30, Pages 4243-4251Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S1352-2310(03)00559-4
Keywords
hygroscopic growth; organics; HTDMA; deliquescence
Ask authors/readers for more resources
There is increasing evidence that organic compounds comprise a significant fraction of tropospheric particles at all altitudes. The presence of these compounds can affect the particles' ability to take up water and to form ice in the atmosphere. In this paper we present studies that investigate the hygroscopic behavior of internal mixtures of ammonium sulfate and low molecular weight dicarboxylic acids. We find that the ammonium sulfate dominates water uptake behavior for mixtures that contain 100:1 and 10:1 mass ratios of ammonium sulfate: dicarboxylic acid. However, for 1:1 mixtures, the dicarboxylic acids play an important role in determining water uptake characteristics. Observed water contents can be predicted within experimental uncertainties by assuming that each component contributes independently to the total particle water content, in accord with previous measurements for the pure components. (C) 2003 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available