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Bioaerosol

About: Bioaerosol is a research topic. Over the lifetime, 1347 publications have been published within this topic receiving 34791 citations.


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Journal ArticleDOI
TL;DR: The very first survey of the prokaryotic community of a bioaerosol collected inside pristine Amazon forest at 2 m above ground suggests that the atmosphere may act as an important gateway to interchange bacteria between plants, soil and water ecosystems.

12 citations

Journal ArticleDOI
TL;DR: Composting favors microorganism development over time, but does not seem to have an effect on the bioaerosol levels and the surface microbiota beyond 0.5 m from the waste bin.
Abstract: Recycling of organic waste appeals to more and more people. The aim of this study was to evaluate the microbiological contamination around organic waste bins at three distances over a 12-month period. Contamination near the customary trash of control households was evaluated at the beginning to ensure that there is no recruitment bias. Air samples using the MAS 100 impactor were carried out in 38 dwellings that do household waste composting and in 10 dwellings of controls. Collection of particles by CIP 10 rotating cup sampler and dust samples collected by electrostatic dust collector cloths were acquired in dwellings that do household waste composting. Samples were analyzed by culture and by real-time quantitative PCR. Information about dwelling characteristics and inhabitant practices was obtained by a standardized questionnaire. The genera most often isolated were Penicillium, Aspergillus, Cladosporium and Streptomyces. Near the organic waste bins, bioaerosol samples showed an increase of Acarus siro (P = 0.001). Sedimented dust analyses highlighted an increase of A. siro, Wallemia sebi, Aspergillus versicolor, and Cladosporium sphaerospermum concentrations after a 12-month survey compared to the beginning. Composting favors microorganism development over time, but does not seem to have an effect on the bioaerosol levels and the surface microbiota beyond 0.5 m from the waste bin.

12 citations

Journal Article
TL;DR: The study found that most of the measured bioaerosol concentrations differed statistically by season (p < .05), and the greatest concentrations throughout the year were found to occur in fine-sized indoor bacteria during the winter.
Abstract: The authors conducted a study in the El Paso, Texas, region to assess the seasonal bioaerosol concentrations in a convenience sample of one-story residences. The authors sampled the same houses for each season over the course of a year (March 2005 to February 2006) to determine bacterial and fungal concentrations. They used a two-stage ambient culturable sampler system to collect the bioaerosol samples. They took indoor and outdoor bioaerosol samples and studied meteorological conditions for each house at each season. The study found that most of the measured bioaerosol concentrations differed statistically by season (p < .05). The greatest concentrations throughout the year were found to occur in fine-sized indoor bacteria during the winter. Meteorological conditions were found not to significantly influence bioaerosol concentrations throughout the year.

12 citations

Journal ArticleDOI
TL;DR: In this article, a multidisciplinary approach for the determination and characterization of bioaerosol with a multi-disciplinary approach has been proposed by using liquid chromatography coupled with tandem mass spectrometry.

12 citations

Journal Article
TL;DR: Concentrations of bioaerosols in all hospitals studied were higher than the suggested value, and standard ventilation system should be designed and utilized for reducingBioaerosol exposure.
Abstract: Background and objective: Bioaerosol exposure is associated with a vast range of adverse health effects including infectious diseases, acute toxic effects, allergy and cancer. This study was conducted to determine type and concentration of bioaerosols in ambient air of educational hospitals. Method: In this cross-sectional study, different wards of 5 educational hospitals including nurse station, patient room, isolation room and operation room were investigated. Totally, 300 air samples were taken based on NIOSH standard method. Blood agar and malt extract agar were used as sampling media. Andersen single-stage sampler with flow of 28.3 lit/min was applied for air sampling. The average sampling time was 10 minutes. Soon after air sampling, samples were shipped to lab and incubated for 48 hours. Then, incubated samples were counted for colonies. Concentration was determined in CFU/m. Findings: the highest and the lowest concentrations were observed in patient room and operation room, respectively. In spite of sterilization, different types of fungi (i.e. Aspergillus niger) and gram-positive bacteria are seen in samples. The results showed that in all hospitals the concentration in all wards were higher than 30 CFU/m as the suggested value. Conclusion: Concentrations of bioaerosols in all hospitals studied were higher than the suggested value. For reducing bioaerosol exposure, standard ventilation system should be designed and utilized.

12 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023133
2022235
202195
202094
201989
201871