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Laboratoire d'aérologie |  |
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Laboratoire d'aérologie | |
| HAL : hal-00330288, version 1 |
| Fiche détaillée |  Récupérer au format |
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| Biogeosciences Discussions 5, 1 (2008) 841-870 |
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| Microbiology and atmospheric processes: chemical interactions of Primary Biological Aerosols |
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| L. Deguillaume 1M. Leriche 2 |
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| (15/02/2008) |
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| This paper discusses the influence of bioaerosols on atmospheric chemistry and vice versa through microbiological and chemical properties and processes. Several studies have shown that biological matter represents a significant fraction of air particulate matter and hence affects the microstructure and water uptake of aerosol particles. Moreover, airborne micro-organisms 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 primary biological particles 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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| 1 : | Laboratoire de météorologie physique (LaMP) |
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CNRS : UMR6016 – INSU – Université Blaise Pascal - Clermont-Ferrand II |
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| 2 : | Laboratoire d'aérologie (LA) |
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CNRS : UMR5560 – Observatoire Midi-Pyrénées – INSU – Université Paul Sabatier [UPS] - Toulouse III |
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| 3 : | Synthèse et étude de systèmes à intêret biologique (SEESIB) |
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CNRS : UMR6504 – Université Blaise Pascal - Clermont-Ferrand II |
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| 4 : | McGill University |
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McGill |
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| 5 : | Technical University of Munich |
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Institute of Hydrochemistry |
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| 6 : | Institute for Chemical Technologies and Analytics |
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Vienna University of Technology |
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| 7 : | Station de Pathologie Végétale (AVI-PATHO) |
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Institut national de la recherche agronomique (INRA) : UR0407 |
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| SEESIB |
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| Domaine | : | Physique/Astrophysique/Cosmologie et astrophysique extra-galactique Planète et Univers/Astrophysique Planète et Univers/Interfaces continentales, environnement Planète et Univers/Océan, Atmosphère Planète et Univers/Sciences de la Terre |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00330288, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00330288 | |
| oai:hal.archives-ouvertes.fr:hal-00330288 | |
| Contributeur : Publication EGU | |
| Soumis le : Mardi 14 Octobre 2008, 10:33:44 | |
| Dernière modification le : Mardi 14 Octobre 2008, 10:33:44 | |
