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| Titel |
On the growth of nucleation mode particles: source rates of condensable vapor in polluted and clean environments |
| VerfasserIn |
M. Kulmala  , T. Petäjä, P. Mönkkönen, I. K. Koponen, M. Maso, P. P. Aalto, K. E. J. Lehtinen, V.-M. Kerminen |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 5, no. 2 ; Nr. 5, no. 2 (2005-02-10), S.409-416 |
| Datensatznummer |
250002351
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| Publikation (Nr.) |
 copernicus.org/acp-5-409-2005.pdf |
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| Zusammenfassung |
| The growth properties of nucleation mode particles were
investigated. The variation of source rates of condensable vapors in
different locations and environmental conditions was analyzed. The
measurements were performed in background stations in Antarctica, in
Finnish Lapland and Boreal Forest stations (SMEAR I and SMEAR II) as
well as in polluted urban sites in Athens, Marseille and New
Delhi. Taking advantage of only the measured spectral evolution of
aerosol particles as a function of time the formation and growth
properties of nucleation mode aerosols were evaluated. The
diameter growth-rate and condensation sink were obtained from the
measured size distribution dynamics. Using this growth rate and
condensation sink, the concentration of condensable vapors and their
source rate were estimated. The growth rates and condensation
sinks ranged between 0.3-20nmh-1 and 10-4-0.07s-1,
respectively. The corresponding source rate of condensable vapors
varied more than 4 orders of magnitude from 103 to over 107cm-1s-1.
The highest condensation sink and source rate
values were observed in New Delhi and the smallest values in
Antarctica. |
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