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Characteristics of Airborne Particles and Bacteria in Hospital Indoor and Outdoor Air

Publish place: Journal of Environmental Health and Sustainable Developmen، Vol: 8، Issue: 4
Publish Year: 1402
Type: Journal paper
Language: English
View: 183

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Link to this Paper:
https://civilica.com/doc/1863853

Document National Code:

JR_JEHSD-8-4_005

Index date: 25 December 2023

Characteristics of Airborne Particles and Bacteria in Hospital Indoor and Outdoor Air abstract

Introduction: Given that hospital air is one of the important environmental sources for transmission of microorganisms, the importance of airborne transmission in the epidemiology of hospital-acquired infections (HAIs) has gained attention in the past two decades. Therefore, the present study aims to determine the concentration of bacteria in association with airborne particulate matter (PM) in the outdoor and indoor air of two hospital wards. Materials and methods: The GRIMM 1.109 dust monitor and the Andersen one-stage viable impactor were used for particle counting and bioaerosol sampling, respectively. Results: The average levels of airborne bacteria sampled from outdoor air were 33 colony-forming units (CFU/m3), and in the air samples of medical and infectious disease wards, they were 76 and 85 CFU/m3, respectively. Staphylococcus spp. and Acinetobacter spp. were the most prevalent bacteria in the samples. Statistical analysis showed a significant association between PM2.5, and PM10 particle mass concentrations and airborne bacteria concentrations in indoor air samples (P-value < 0.05). Conclusion: Some bacterial agents of HAIs existed in hospital air and may be problematic for immunocompromised patients. Higher levels of bacteria in indoor air compared to outdoor air may indicate that the bacteria were of indoor origin, such as the presence and activities of people. Moreover, the results showed that particle counting may be a useful tool for airborne bacteria monitoring.

Characteristics of Airborne Particles and Bacteria in Hospital Indoor and Outdoor Air Keywords:

Aerosols , Bacteria , Particulate Matter , Hospitals.

Characteristics of Airborne Particles and Bacteria in Hospital Indoor and Outdoor Air authors

Fatemeh Atoof

Department of Biostatistics and Epidemiology, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran.

Sahar Gholipour

Department of Environmental Health Engineering, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran.

Zahra Shamsizadeh

Department of Environmental Health Engineering, School of Health, Larestan University of Medical Sciences, Larestan, Iran.

Mohsen Amirimoghaddam

Department of Biostatistics and Epidemiology, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran.

Nezam Mirzaei

Department of Environmental Health Engineering, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran.

Ali Nazari-Alam

Department of Microbiology and Immunology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran.

Davarkhah Rabbani

Department of Biostatistics and Epidemiology, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran.

Mansour Baziar

Ferdows school of Paramedical and Health, Birjand University of Medical Sciences, Birjand, Iran.

Gholamreza Hoseindoost

Department of Biostatistics and Epidemiology, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran.

Gholamreza Mostafaii

Department of Biostatistics and Epidemiology, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran.

Abbas Bahrami

Department of Occupational Health Engineering, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran.

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