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| Titel |
Microbiology and atmospheric processes: chemical interactions of primary biological aerosols |
| VerfasserIn |
L. Deguillaume, M. Leriche, P. Amato, P. A. Ariya, A.-M. Delort, U. Pöschl, N. Chaumerliac, H. Bauer, A. I. Flossmann, C. E. Morris |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 5, no. 4 ; Nr. 5, no. 4 (2008-07-30), S.1073-1084 |
| Datensatznummer |
250002679
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| Publikation (Nr.) |
 copernicus.org/bg-5-1073-2008.pdf |
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| Zusammenfassung |
| This paper discusses the influence of primary biological aerosols (PBA) on
atmospheric chemistry and vice versa through microbiological and chemical
properties and processes. Several studies have shown that PBA represent a
significant fraction of air particulate matter and hence affect the
microstructure and water uptake of aerosol particles. Moreover, airborne
micro-organisms, namely fungal spores and bacteria, can transform chemical
constituents of the atmosphere by metabolic activity. Recent studies have
emphasized the viability of bacteria and metabolic degradation of organic
substances in cloud water. On the other hand, the viability and metabolic
activity of airborne micro-organisms depend strongly on physical and
chemical atmospheric parameters such as temperature, pressure, radiation, pH
value and nutrient concentrations. In spite of recent advances, however, our
knowledge of the microbiological and chemical interactions of PBA in the
atmosphere is rather limited. Further targeted investigations combining
laboratory experiments, field measurements, and modelling studies will be
required to characterize the chemical feedbacks, microbiological activities
at the air/snow/water interface supplied to the atmosphere. |
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