Cloud condensation nucleus activity of secondary organic aerosol particles mixed with sulfate
نویسندگان
چکیده
منابع مشابه
Cloud condensation nucleus activity of secondary organic aerosol particles mixed with sulfate
[1] The cloud condensation nucleus (CCN) activity of organic-sulfate particles was investigated using a steadystate environmental chamber. The organic component consisted of secondary organic aerosol (SOA) generated in the dark from 24 ± 2 ppb a-pinene for conditions of 300 ± 5 ppb ozone, 40 ± 2% relative humidity, and 25 ± 1 C, with the organic mass loading in the chamber ranging from 23 to 37...
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Aliphatic amines can form secondary aerosol via oxidation with atmospheric radicals (e.g., hydroxyl radical and nitrate radical). The particle can contain both secondary organic aerosol (SOA) and inorganic salts. The ratio of organic to inorganic materials in the particulate phase influences aerosol hygroscopicity and cloud condensation nuclei (CCN) activity. SOA formed from trimethylamine (TMA...
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1 Department of Earth and Environmental Sciences at University of Pannonia, Egyetem u. 10, 8200 Veszprém, Hungary 2 Air Chemistry Group of the Hungarian Academy of Sciences, University of Pannonia, P.O. Box 158, 8201 Veszprém, Hungary 3 Institute of Applied Environmental Research, Stockholm University, Stockholm, 10691, Sweden Received: 8 March 2007 – Accepted: 10 April 2007 – Published: 19 Apr...
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Motivated by the need to develop instrumental techniques for characterizing organic aerosol aging, we report on the performance of the Toronto Photo-Oxidation Tube (TPOT) and Potential Aerosol Mass (PAM) flow tube reactors under a variety of experimental conditions. The PAM system was designed with lower surface-area-tovolume (SA/V) ratio to minimize wall effects; the TPOT reactor was designed ...
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2007
ISSN: 0094-8276
DOI: 10.1029/2007gl030390