Monitoring, control, and reduction of bioaerosols in the intensive care unit

IF 1 Q4 ENGINEERING, ENVIRONMENTAL Journal of Environmental Engineering and Science Pub Date : 2022-10-24 DOI:10.1680/jenes.22.00002
S. Lakestani, İ. Çakır, H. Gozdas, I. Yildiz, A. Demirhan
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Abstract

Maintaining high indoor air quality in hospitals is important for protecting the health of both personnel and patients. In this study, the results of air quality monitoring carried out in the intensive care unit of a hospital in Bolu, Turkey, are discussed. Air disinfection devices were used to reduce the concentrations of bacteria. A four-week sampling program was implemented. In the first and the last weeks of the sampling, the disinfection devices were turned off, while in the second and third weeks they were turned on. Bioaerosols were collected and their indoor levels were determined by counting all plate colonies and bacterial types were identified by MALDI-TOF-MS. The highest levels of bacteria were measured in the mornings and before the air disinfection devices were turned on. Doctors do their rounds at approximately 9-10 o’clock. The dominant bacteria in the air samples examined were Staphylococcus hominis, Micrococcus luteus, Staphylococcus capitis, Staphylococcus epidermidis, Corynebacterium afermentans, and Staphylococcus haemolyticus. The results showed that the air disinfection devices were effective in decreasing the concentration of microorganisms between 83.4%- 55% in the intensive care unit, which is very important for the healthcare staff and patients, especially during pandemics.
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重症监护室生物气溶胶的监测、控制和减少
在医院保持高室内空气质量对于保护工作人员和患者的健康非常重要。在这项研究中,讨论了土耳其博卢一家医院重症监护室的空气质量监测结果。空气消毒装置被用来降低细菌的浓度。实施了为期四周的抽样计划。在采样的第一周和最后一周,消毒装置被关闭,而在第二周和第三周,它们被打开。收集生物气溶胶,通过计数所有菌落来确定其室内水平,并通过MALDI-TOF-MS鉴定细菌类型。细菌的最高水平是在早上和打开空气消毒设备之前测量的。医生大约在9-10点巡视。检测的空气样本中的优势细菌为人葡萄球菌、黄体微球菌、头葡萄球菌、表皮葡萄球菌、非发酵棒状杆菌和溶血葡萄球菌。结果表明,空气消毒设备可以有效地将重症监护室的微生物浓度降低83.4%-55%,这对医护人员和患者非常重要,尤其是在大流行期间。
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来源期刊
CiteScore
1.60
自引率
0.00%
发文量
20
审稿时长
12 months
期刊介绍: Journal of Environmental Engineering and Science is an international, peer-reviewed publication providing a forum for the dissemination of environmental research, encouraging interdisciplinary research collaboration to address environmental problems. It addresses all aspects of environmental engineering and applied environmental science, with the exception of noise, radiation and light.
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