ArticleEnvironmental monitoring and assessment2019
Investigating the effect of several factors on concentrations of bioaerosols in a well-ventilated hospital environment.
Article in Environmental monitoring and assessment, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed.
- Creating respiratory pathogen-free environments in healthcare and nursing-care settings: a comprehensive review.GeroScience · 2025Review
- Antibiotic resistance of bioaerosols in particulate matter from indoor environments of the hospitals in Dhaka Bangladesh.Scientific reports · 2024Article
- Assessment of UV radiation effects on airborne mucormycetes and bacterial populations in a hospital environment.Scientific reports · 2024Article
- AWMF mold guideline "Medical clinical diagnostics for indoor mold exposure" - Update 2023 AWMF Register No. 161/001.Allergologie select · 2024Article
- Assessment of indoor air quality and their inter-association in hospitals of northern India-a cross-sectional study.Air quality, atmosphere, & health · 2023Article
- The impact of ventilation rate on reducing the microorganisms load in the air and on surfaces in a room-sized chamber.Indoor air · 2022Article
- Contamination of obsterics and gynecology hospital air by bacterial and fungal aerosols associated with nosocomial infections.Journal of environmental health science & engineering · 2021Article
- Prediction Model for Airborne Microorganisms Using Particle Number Concentration as Surrogate Markers in Hospital Environment.International journal of environmental research and public health · 2020Article
- Environmental Factors and Ventilation Affect Concentrations of Microorganisms in Hospital Wards of Southern Thailand.Journal of environmental and public health · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
Abstract
This study characterized and quantified the bacterial and fungal bioaerosols in nine wards of the Razavi Hospital (Mashhad, Iran) that is equipped with an advanced heating, ventilating, and air conditioning (HVAC) system including HEPA filters for air cleaning. In this study, 432 samples were taken from the indoor air of multiple hospital wards during the morning and afternoon shifts during summer and autumn. The particle number concentrations with sizes of > 0.3, > 0.5, > 1, > 2, > 5, and > 10 μm were measured using a 6-channel handheld particle counter. A greater diversity of bioaerosol types were observed during the morning shifts and during summer. The microbial load was not affected significantly by the temperature, relative humidity, working shift, season, and number of visitors, indicating the effectiveness of a well-designed ventilation system to eliminate site-specific variations. For microbial number concentrations, a significant correlation was only observed between the number of particles with a diameter of > 10 μm and the airborne microbial loading. Thus, passive sampling may not properly reflect the actual concentrations of smaller bioaerosols. In conclusion, HEPA filters in the HVAC system successfully decreased the bioaerosol concentrations in the hospital environment. Additionally, we recommend that active sampling be used in cases where a well-functioning HVAC system exists.
Indexed as
Identifiers
31165312What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.