Development of a Novel Bioaerosol Chamber to Determine Survival Rates of Airborne Staphylococci
Large amounts of microorganisms are emitted from animal houses into the environment via exhaust air. To assess the potential risks, the spread of microorganisms can be simulated with computer models. Such modeling usually does not take into account die-off rates, since there are hardly any reliable...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Atmosphere |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4433/13/6/869 |
| _version_ | 1797490145411203072 |
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| author | Marcus Clauß Stefan Linke Christin Tautz Sarah Bromann |
| author_facet | Marcus Clauß Stefan Linke Christin Tautz Sarah Bromann |
| author_sort | Marcus Clauß |
| collection | DOAJ |
| description | Large amounts of microorganisms are emitted from animal houses into the environment via exhaust air. To assess the potential risks, the spread of microorganisms can be simulated with computer models. Such modeling usually does not take into account die-off rates, since there are hardly any reliable data so far on how long microorganisms can survive in outdoor air. Previous studies were conducted almost exclusively in closed chambers and usually only took into account the influence of individual environmental factors such as temperature or humidity. Therefore, a novel bioaerosol chamber was developed to quantify the survival rates of Staphylococci specific to livestock under outdoor air conditions. For evaluation, the survival rates of <i>Staphylococcus xylosus</i> were determined as a function of temperature, relative humidity, ozone concentration, and global radiation. Survival rates decreased with increasing temperature, decreasing relative humidity, increasing global radiation intensity, and increasing ozone concentration. At 12 min in the airborne state, die-off rates of more than 90% were observed, especially at high global radiation levels > 400 W/m<sup>2</sup>. The novel bioaerosol chamber enabled the investigation of the survival rates of airborne microorganisms over a certain period of time in a quasi-closed system and yet under real outdoor air conditions. |
| first_indexed | 2024-03-10T00:27:50Z |
| format | Article |
| id | doaj.art-9137c8e48605424889fb5c5d254c70aa |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T00:27:50Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-9137c8e48605424889fb5c5d254c70aa2023-11-23T15:31:55ZengMDPI AGAtmosphere2073-44332022-05-0113686910.3390/atmos13060869Development of a Novel Bioaerosol Chamber to Determine Survival Rates of Airborne StaphylococciMarcus Clauß0Stefan Linke1Christin Tautz2Sarah Bromann3Thuenen Institute of Agricultural Technology, Bundesallee 47, D-38116 Braunschweig, GermanyThuenen Institute of Agricultural Technology, Bundesallee 47, D-38116 Braunschweig, GermanyThuenen Institute of Agricultural Technology, Bundesallee 47, D-38116 Braunschweig, GermanyThuenen Institute of Agricultural Technology, Bundesallee 47, D-38116 Braunschweig, GermanyLarge amounts of microorganisms are emitted from animal houses into the environment via exhaust air. To assess the potential risks, the spread of microorganisms can be simulated with computer models. Such modeling usually does not take into account die-off rates, since there are hardly any reliable data so far on how long microorganisms can survive in outdoor air. Previous studies were conducted almost exclusively in closed chambers and usually only took into account the influence of individual environmental factors such as temperature or humidity. Therefore, a novel bioaerosol chamber was developed to quantify the survival rates of Staphylococci specific to livestock under outdoor air conditions. For evaluation, the survival rates of <i>Staphylococcus xylosus</i> were determined as a function of temperature, relative humidity, ozone concentration, and global radiation. Survival rates decreased with increasing temperature, decreasing relative humidity, increasing global radiation intensity, and increasing ozone concentration. At 12 min in the airborne state, die-off rates of more than 90% were observed, especially at high global radiation levels > 400 W/m<sup>2</sup>. The novel bioaerosol chamber enabled the investigation of the survival rates of airborne microorganisms over a certain period of time in a quasi-closed system and yet under real outdoor air conditions.https://www.mdpi.com/2073-4433/13/6/869bioaerosolstenacity<i>Staphylococcus xylosus</i> |
| spellingShingle | Marcus Clauß Stefan Linke Christin Tautz Sarah Bromann Development of a Novel Bioaerosol Chamber to Determine Survival Rates of Airborne Staphylococci Atmosphere bioaerosols tenacity <i>Staphylococcus xylosus</i> |
| title | Development of a Novel Bioaerosol Chamber to Determine Survival Rates of Airborne Staphylococci |
| title_full | Development of a Novel Bioaerosol Chamber to Determine Survival Rates of Airborne Staphylococci |
| title_fullStr | Development of a Novel Bioaerosol Chamber to Determine Survival Rates of Airborne Staphylococci |
| title_full_unstemmed | Development of a Novel Bioaerosol Chamber to Determine Survival Rates of Airborne Staphylococci |
| title_short | Development of a Novel Bioaerosol Chamber to Determine Survival Rates of Airborne Staphylococci |
| title_sort | development of a novel bioaerosol chamber to determine survival rates of airborne staphylococci |
| topic | bioaerosols tenacity <i>Staphylococcus xylosus</i> |
| url | https://www.mdpi.com/2073-4433/13/6/869 |
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