STUDY OF MICROORGANISMS WITHIN THE HOUSING ENVIRONMENT | ||||
| Journal of Environmental Science | ||||
| Article 3, Volume 43, Issue 3, September 2018, Page 37-55 PDF (393.91 K) | ||||
| Document Type: Review Article | ||||
| DOI: 10.21608/jes.2018.23843 | ||||
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| Authors | ||||
| Abdel Aziz, Heba, K. A.1; Howaihy, M. A. I.* 1; Arafa, Rawhia, A.2 | ||||
| 1Department of Basic Science, Institute of Environmental Studies & Research, Ain Shams University | ||||
| 2Department of Botany and Microbiology, Faculty of Science, Girl Branch, AL-Azhar University | ||||
| Abstract | ||||
| Bacteria are found virtually in every environment. High levels of indoor bacteria concentration is an indication of high occupancy rate, poor ventilation, or poor building maintenance. We study airborne Bacteria in Indoor Environments in two residences areas covering summer, winter season to study the climate effect (temperature) also covering high level and low level population to study the quality of life (good aeration, ventilation and variation of occupation area per citizens). We examine the presence of airborne Bacteria in Indoor Environments and colony forming unit for each case and we found that Exiguobacterium sp was the most frequent bacteria (37.5%) in high level population during the Summer climate, Bacillus sp was the most frequent bacteria (26.7%) in high level population during the Winter climate, Brachybacterium sp was the most frequent bacteria (42.4%) during the summer climate and kytococcus sp was the most frequent bacteria (32.2%) in low level population during the winter climate. We found a significant increase in colony forming unit among low level residence population during summer with Minimum, Maximum, Mean value 17.5, 25, 21.69 CFU/m3 respectively than among High level residence population in summer with Minimum, Maximum, Mean value 7.92, 14.58, 10.97 CFU/m3 respectively with p-value <0.001 which indication the negative effect of high occupancy rate, poor ventilation on quality of life and a significant increase in colony forming unit in high level residence population in summer with Minimum, Maximum, Mean value 7.92, 14.58, 10.69 CFU/m3 respectively than in high level residence population in winter with Minimum, Maximum, Mean value 0.42, 2.5, 1.39 CFU/m3 respectively with p-value <0.001 which indicate high level of airborne bacteria due to high temperature . | ||||
| Keywords | ||||
| Keywords: Air; microorganisms; airborne Bacteria; Seasons and residences level | ||||
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