Results 191 to 200 of about 4,491 (217)

Drag constants for common indoor bioaerosols

Indoor and Built Environment, 2013
In practice, the drag coefficient of a particle is usually calculated using empirical relationships obtained by generalizing experimental data. This study demonstrates that using the default Stokes’ law settings in FLUENT to computationally predict the drag coefficients for bioaerosol deposition is not really appropriate: the average fractional bias ...
Wong, LT, Yu, HC, Mui, KW, Chan, WY
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Association of asthma symptoms and severity with indoor bioaerosols

Allergy, 2000
Background: In this study, repeated measurements were made of levels of mold spores, bacteria, and dust‐mite allergens over a 7‐month period in the homes of asthmatics, and relationships with measures of asthma severity were evaluated. Methods: A sample of 57 asthmatic individuals, living in 44 homes in East Moline, Illinois, and nearby communities ...
M A, Ross, L, Curtis, P A, Scheff, D O, Hryhorczuk, V, Ramakrishnan, R A, Wadden, V W, Persky   +6 more
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Assessing residential indoor and outdoor bioaerosol characteristics using the ultraviolet light-induced fluorescence-based wideband integrated bioaerosol sensor

Environmental Science: Processes & Impacts, 2022
We assessed and compared indoor and outdoor residential aerosol particles in a third-floor apartment from August through September 2020.
Yao S. Addor, Darrel Baumgardner, Dagen Hughes, Nicholas Newman, Roman Jandarov, Tiina Reponen   +5 more
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Detection of indoor fungi bioaerosols

2011
The detection of microorganisms in environmental samples, particularly from air, has a long history, greatly pre-dating the analysis of the chemical contaminants that are now generally more familiar to occupational hygiene. Antonie van Leeuwenhoek (1632–1723) was the first to demonstrate the presence of microbial cells in indoor dust, but it was not ...
James A. Scott, Richard C. Summerbell, Brett J. Green   +2 more
openaire   +1 more source

Assessment of Bioaerosol Concentrations in Different Indoor Environments

Indoor and Built Environment, 2008
The aim of this study was the assessment of bioaerosols in different indoor environments. The study was performed using volumetric culture plate air sampling to determine the concentration of viable bioaerosols. The results revealed that 60.9% of air samples from public places and all air samples collected in food processing plants had unacceptable ...
Tina Zorman, Barbara Jeršek
openaire   +1 more source

Indoor bioaerosols and asthma: Overview, implications, and mitigation strategies

Journal of Allergy and Clinical Immunology
Aerosolized particles with a biological origin are called bioaerosols. Bioaerosols from plants, animals, fungi, bacteria, and viruses are an important class of environmental exposures that are clinically relevant to asthma. However, there are important differences in the pathways by which various bioaerosols affect asthma.
Karen C, Dannemiller, Laura A, Conrad, Sarah R, Haines, Yvonne J, Huang, Linsey C, Marr, Jeffrey A, Siegel, Sumaiya, Hassan, Jon C, King, Aaron J, Prussin, Austin, Shamblin, Matthew S, Perzanowski   +10 more
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Bioaerosols: Prevalence and health effects in the indoor environment

Journal of Allergy and Clinical Immunology, 1990
Assessing the role of bioaerosols in residence-related symptoms involves (1) determining that symptoms are related to the residence by medical examination and careful questioning, (2) connecting reported symptoms with known or hypothesized effects of bioaerosols, (3) examining the residence for bioaerosol risk factors such as overcrowding/poor ...
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Evaluating indoor air quality: test standards for bioaerosols

2008
Revised July 2003. A field comparison of four bioaerosol samplers, the Reuter Centrifugal Sampler (RCS), the Andersen N6 Single Stage (N6), the Surface Air System Super 90, and the Air-o-Cell sampler (AOC), was conducted in a variety of public buildings for the measurement of fungal aerosols to compare sampling performance efficiencies and to collect ...
Bartlett, Karen H., Lee, Kit Shan, Stephens, Gwen, Black, William, Brauer, Michael, Copes, Ray   +5 more
openaire   +1 more source

Quantifying the size-resolved dynamics of indoor bioaerosol transport and control

Indoor Air, 2017
Understanding the bioaerosol dynamics of droplets and droplet nuclei emitted during respiratory activities is important for understanding how infectious diseases are transmitted and potentially controlled. To this end, we conducted experiments to quantify the size-resolved dynamics of indoor bioaerosol transport and control in an unoccupied apartment ...
S. A. Kunkel, P. Azimi, H. Zhao, B. C. Stark, B. Stephens   +4 more
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Documentation of bioaerosol concentrations in an indoor composting facility in France

Journal of Environmental Monitoring, 2012
Bioaerosol concentrations were investigated in a totally indoor composting facility processing fermentable household and green wastes to assess their variability. Stationary samples were collected by filtration close to specific composting operations and then were analysed for cultivable mesophilic bacteria, thermophilic bacteria, mesophilic fungi ...
Philippe, Duquenne, Xavier, Simon, Véronique, Koehler, Solimar, Goncalves-Machado, Guylaine, Greff, Thérèse, Nicot, Pascal, Poirot   +6 more
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