 |
Observatoire Midi-Pyrénées |  |
|
Observatoire Midi-Pyrénées | |
| HAL: hal-00323726, version 1 |
| Detailed view |  Export this paper |
 |
| Biogeosciences 5 (2008) 1073-1084 |
|
|
|
|
| Microbiology and atmospheric processes: chemical interactions of primary biological aerosols. |
|
|
| Laurent Deguillaume 1M. Leriche 2 |
|
|
| (2008) |
|
|
|
| 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. |
|
|
|
|
|
|
|
|
|
|
|
| 1: | Laboratoire de météorologie physique (LaMP) |
|
|
|
CNRS : UMR6016 – INSU – Université Blaise Pascal - Clermont-Ferrand II |
|
|
| 2: | Laboratoire d'aérologie (LA) |
|
|
|
CNRS : UMR5560 – Observatoire Midi-Pyrénées – INSU – Université Paul Sabatier [UPS] - Toulouse III |
|
|
| 3: | Synthèse et étude de systèmes à intêret biologique (SEESIB) |
|
|
|
CNRS : UMR6504 – Université Blaise Pascal - Clermont-Ferrand II |
|
|
| 4: | Departments of Chemsitry and Atmospheric and Oceanic Sciences |
|
|
|
McGill University |
|
|
| 5: | Max Planck Institute for Chemistry |
|
|
|
Max Planck Institute for Chemistry |
|
|
| 6: | Inst. for Chemical Technologies and Analytics |
|
|
|
Vienna University of Technologies |
|
|
| 7: | Unité de Pathologie Végétale |
|
|
|
Institut national de la recherche agronomique (INRA) : UR407 |
|
|
|
|
|
|
|
|
|
| SEESIB |
|
|
|
|
| Subject | : | Chemical Sciences/Analytical chemistry |
|
|
| Attached file list to this document: | |||||
|
|||||
|
|
|
| hal-00323726, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00323726 | |
| oai:hal.archives-ouvertes.fr:hal-00323726 | |
| From: Stéphanie Bonnefoy | |
| Submitted on: Tuesday, 23 September 2008 09:47:13 | |
| Updated on: Tuesday, 23 September 2008 14:08:24 | |
