Details:

Alternative Title:
J Environ Monit
Publisher's site:
http://dx.doi.org/10.1039/c2em30299c
Personal Author:
Su, Wei-Chung ; Tolchinsky, Alexander D. ; Chen, Bean T. ; Sigaev, Vladimir I. ; Cheng, Yung Sung
Su, Wei-Chung ; Tolchinsky, Alexander D. ; Chen, Bean T. ; Sigaev, Vladimir I. ; Cheng, Yung Sung Less -
Description:
The need to determine occupational exposure to bioaerosols has notably increased in the past decade, especially for microbiology-related workplaces and laboratories. Recently, two new cyclone-based personal bioaerosol samplers were developed by the National Institute for Occupational Safety and Health (NIOSH) in the USA and the Research Center for Toxicology and Hygienic Regulation of Biopreparations (RCT & HRB) in Russia to monitor bioaerosol exposure in the workplace. Here, a series of wind tunnel experiments were carried out to evaluate the physical sampling performance of these two samplers in moving air conditions, which could provide information for personal biological monitoring in a moving air environment. The experiments were conducted in a small wind tunnel facility using three wind speeds (0.5, 1.0 and 2.0 m s(-1)) and three sampling orientations (0°, 90°, and 180°) with respect to the wind direction. Monodispersed particles ranging from 0.5 to 10 μm were employed as the test aerosols. The evaluation of the physical sampling performance was focused on the aspiration efficiency and capture efficiency of the two samplers. The test results showed that the orientation-averaged aspiration efficiencies of the two samplers closely agreed with the American Conference of Governmental Industrial Hygienists (ACGIH) inhalable convention within the particle sizes used in the evaluation tests, and the effect of the wind speed on the aspiration efficiency was found negligible. The capture efficiencies of these two samplers ranged from 70% to 80%. These data offer important information on the insight into the physical sampling characteristics of the two test samplers.
Subject:
[+]
Aerosols
Air Microbiology
Air Movements
Air Pollutants, Occupational
Air Pollution, Indoor
Article
Environmental Monitoring
Equipment Design
Humans
Occupational Exposure
Particle Size

Source:
J Environ Monit. 14(9):2430-2437.
Pubmed ID:
22833144
Pubmed Central ID:
PMC4649907
Document Type:
Journal Article
Funding:
R01 OH008913/OH/NIOSH CDC HHS/United States ; R01 OH009801/OH/NIOSH CDC HHS/United States
R01 OH008913/OH/NIOSH CDC HHS/United States ; R01 OH009801/OH/NIOSH CDC HHS/United States Less -
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:99ec073eb5e240bd7bb02fde0c06488bbe361af0f729ce61bb069a5812021b95
File Type:

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