Study on the relationship between the concentration and type of fungal bio-aerosols at indoor and outdoor air in the Children’s Medical Center, Tehran, Iran

Roshan, Sedighe Karimpour; Godini, Hamid Reza; Nikmanesh, Bahram; Charsizadeh, Arezoo

doi:10.1007/s10661-018-7183-4

Cited by 19 publications

(10 citation statements)

References 36 publications

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“…The importance of controlling airborne particles in intensive care units is highlighted, due to the patient's compromised immune system [70,74,75]. The influence of the outdoor environment on indoor microbiological contamination is established [49,[76][77][78][79], as well as the importance of adequate indoor temperature and relative humidity control to reduce microbiological loads [17,19,68].…”

Section: 13 X For Peer Review 7 Of 19mentioning

confidence: 99%

Indoor Air Quality in Healthcare Units—A Systematic Literature Review Focusing Recent Research

et al. 2022

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The adequate assessment and management of indoor air quality in healthcare facilities is of utmost importance for patient safety and occupational health purposes. This study aims to identify the recent trends of research on the topic through a systematic literature review following the preferred reporting items for systematic reviews and meta-analyses (PRISMA) methodology. A total of 171 articles published in the period 2015–2020 were selected and analyzed. Results show that there is a worldwide growing research interest in this subject, dispersed in a wide variety of scientific journals. A textometric analysis using the IRaMuTeQ software revealed four clusters of topics in the sampled articles: physicochemical pollutants, design and management of infrastructures, environmental control measures, and microbiological contamination. The studies focus mainly on hospital facilities, but there is also research interest in primary care centers and dental clinics. The majority of the analyzed articles (85%) report experimental data, with the most frequently measured parameters being related to environmental quality (temperature and relative humidity), microbiological load, CO2 and particulate matter. Non-compliance with the WHO guidelines for indoor air quality is frequently reported. This study provides an overview of the recent literature on this topic, identifying promising lines of research to improve indoor air quality in healthcare facilities.

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Section: 13 X For Peer Review 7 Of 19mentioning

confidence: 99%

Indoor Air Quality in Healthcare Units—A Systematic Literature Review Focusing Recent Research

et al. 2022

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“…Exposure to bacterial and fungal aerosols has been associated with numerous health effects, including respiratory diseases, such as asthma, allergic rhinitis, and hypersensitivity pneumonitis 9‐12 . Cladosporium , Penicillium , Stachybotrys spp., and Aspergillus fungal genera are common species causing allergic responses and infections 13,14 . Associations of wheezing, chronic cough, and subjective respiratory symptoms with damp/moldy surroundings have also been well‐established 15 .…”

Section: Introductionmentioning

confidence: 99%

“…[9][10][11][12] Cladosporium, Penicillium, Stachybotrys spp., and Aspergillus fungal genera are common species causing allergic responses and infections. 13,14 Associations of wheezing, chronic cough, and subjective respiratory symptoms with damp/moldy surroundings have also been well-established. 15 Children's respiratory and immune systems are vulnerable to bioaerosol exposure even before birth.…”

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confidence: 99%

Presence and variability of culturable bioaerosols in three multi‐family apartment buildings with different ventilation systems in the Northeastern US

et al. 2020

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Bioaerosol concentrations in residential buildings located in the Northeastern US have not been widely studied. Here, in 2011‐2015, we studied the presence and seasonal variability of culturable fungi and bacteria in three multi‐family apartment buildings and correlated the bioaerosol concentrations with building ventilation system types and environmental parameters. A total of 409 indoor and 86 outdoor samples were taken. Eighty‐five percent of investigated apartments had indoor‐outdoor (I/O) ratios of culturable fungi below 1, suggesting minimal indoor sources of fungi. In contrast, 56% of the apartments had I/O ratios for culturable bacteria above 1, indicating the prominence of indoor sources of bacteria. Culturable fungi I/O ratios in apartments serviced by central heating, ventilation, and air‐conditioning (HVAC) system were lower than those in apartments with window AC. The type of ventilation system did not have a significant effect on the presence of indoor culturable bacteria. A significant positive association was determined between indoor dew point (DP) levels and indoor culturable fungi (P < .001) and bacteria (P < .001), regardless of ventilation type. Also, residents in apartments with central HVAC did not experience extreme DP values. We conclude that building ventilation systems, seasonality, and indoor sources are major factors affecting indoor bioaerosol levels in residential buildings.

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“…Similar results were obtained by Kubera et al 2015 in kindergartens (67.5%). Karimpour et al (2019) noted the dominance of Penicillium spp. (45.86%) and Cladosporium spp.…”

Section: Concentration and Identification Of Moldsmentioning

confidence: 99%

Microbiological air quality in pharmacies and an antibiotic resistance profile of staphylococci species

2020

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The air in public facilities contains microorganisms which may cause a wide variety of clinical syndromes in humans. This is particularly important in primary healthcare units, where patients with reduced immunity and staff are directly exposed to microbial pathogens. Air samples were collected from dispensing areas (customer areas) of five pharmacies using MAS-100 air sampler. The concentration of particular groups of microorganisms was determined with the use of selective media. The taxonomic analysis of mannitol-positive bacteria was conducted using the BIOLOG Ò method, based on metabolic characteristics of analyzed strains. The isolated molds were identified based on their macroscopic and microscopic features according to available keys. The antimicrobial susceptibility of identified staphylococci was tested using the disk diffusion method in accordance with The European Committee on Antimicrobial Susceptibility Testing recommendations. The highest average concentrations of heterotrophic bacteria and staphylococci were recorded in two hospital pharmacies. The highest average concentrations of molds were recorded in the pharmacies located in shopping centers. Taxonomic analysis indicated that Cladosporium and Penicillium spp. predominated among the isolated molds while Staphylococcus haemolyticus and Staphylococcus aureus, among mannitol-positive bacteria. Antibiograms showed that the majority of Staphylococcus strains (68.2%) were resistant to erythromycin. There was a statistically significant correlation between the concentration of investigated bacteria and the season of the year as well as the size and location of the pharmacies. The results demonstrate that there is a range of factors affecting air quality in public spaces and emphasize the fact that pharmacies can be a source of potentially pathogenic, drug-resistant bacteria.

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Study on the relationship between the concentration and type of fungal bio-aerosols at indoor and outdoor air in the Children’s Medical Center, Tehran, Iran

Cited by 19 publications

References 36 publications

Indoor Air Quality in Healthcare Units—A Systematic Literature Review Focusing Recent Research

Indoor Air Quality in Healthcare Units—A Systematic Literature Review Focusing Recent Research

Presence and variability of culturable bioaerosols in three multi‐family apartment buildings with different ventilation systems in the Northeastern US

Microbiological air quality in pharmacies and an antibiotic resistance profile of staphylococci species

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