Environmental Factors and Ventilation Affect Concentrations of Microorganisms in Hospital Wards of Southern Thailand
| Autor: | Nutthajit Onmek, Angkana Penjumrus, Jinda Kongcharoen, Ailada Singtong, Siripich Junnoo |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
010504 meteorology & atmospheric sciences
Article Subject Health Toxicology and Mutagenesis Microorganism Air Microbiology 010501 environmental sciences Affect (psychology) 01 natural sciences law.invention Health problems law Environmental health Tropical climate Patients' Rooms Environmental quality 0105 earth and related environmental sciences Air Movements Plate method Public Health Environmental and Occupational Health Temperature Humidity Contamination Thailand Hospitals Ventilation Ventilation (architecture) Environmental science Public aspects of medicine RA1-1270 Research Article |
| Zdroj: | Journal of Environmental and Public Health Journal of Environmental and Public Health, Vol 2020 (2020) |
| ISSN: | 1687-9813 1687-9805 |
| Popis: | Hospitals tend to have high density of occupancy. Poor indoor environmental quality in hospital buildings can exacerbate the health problems of patients and also harm visitors and staff. This study investigated the environmental characteristics and ventilation affecting the concentration of microorganisms in multiple-bed hospital wards. The measurements were accomplished by using a biosampler and an open plate method at four wards, different positions of electric fans, and different times. Data were analyzed by t-test and MANOVA. The results revealed that the concentrations of airborne bacteria were higher than the concentrations of fungi. There were significant differences in the concentrations of bacteria and fungi between sampling times and between hospital wards (p<0.05), while no difference was observed by positions of electric fans. Correlations between the concentrations and other environmental parameters indicate that temperature, number of occupants, and humidity were physical factors associated with the concentrations of microorganisms. In addition, mostly, Gram-positive bacteria were observed. This indicates the conditions in buildings in the tropical climate, and regular housekeeping of all room areas is needed to prevent the growth of airborne contaminants and the related risks to patients, visitors, and staff. |
| Databáze: | OpenAIRE |
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