@inproceedings{ec46ff981b1b4399a3d81fc83f022352,
title = "Acid-base chemical reaction model for nucleation rates in the polluted atmospheric boundary layer",
abstract = "Measurements of aerosol number distributions down to one molecule have provided information that we've used to develop a new approach for modeling atmospheric nucleation rates. Measurements were carried out with the Cluster Chemical Ionization Mass Spectrometer (Cluster CIMS), the scanning mobility spectrometer using a diethylene glycol condensation particle counter as detector (DEG SMPS), and an ambient pressure proton transfer mass spectrometer for ammonia and amines (AmPMS). The model explains nucleation as a result of cluster evolution due to a sequence of acid-base reactions. We conclude that the smallest stable cluster contains four sulfuric acid molecules. The model leads to a simple analytic expression for nucleation rates that is reasonably consistent (i.e., ± 10x) with atmospheric observations. The model predicts that nucleation rates are equal to a prefactor, P<1, times the sulfuric acid vapor collision rate, (i.e., J=Ps0.5sk11 *[H 2SO4]2).",
keywords = "Amines, Ammonia, CCN, Clusters, Nanoparticles, Nucleation, Sulfuric Acid",
author = "Modi Chen and Mari Titcombe and Jingkun Jiang and Coty Jen and Chongai Kuang and Fischer, {Marc L.} and Eisele, {Fred L.} and Siepmann, {J. Ilja} and Hanson, {David R.} and Jun Zhao and McMurry, {Peter H.}",
year = "2013",
month = may,
day = "14",
doi = "10.1063/1.4803354",
language = "English (US)",
isbn = "9780735411524",
series = "AIP Conference Proceedings",
pages = "647--650",
booktitle = "Nucleation and Atmospheric Aerosols - 19th International Conference",
note = "19th International Conference on Nucleation and Atmospheric Aerosols, ICNAA 2013 ; Conference date: 23-06-2013 Through 28-06-2013",
}