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Mining Publication: Performance Comparison of Real-Time Light Scattering Dust Monitors Across Dust Types and Humidity Levels
Keywords: Light scattering dust monitors Personal dust monitors
Original creation date: November 2019
Authors: J Patts, D Tuchman, E Rubinstein, E Cauda, A Cecala
Peer Reviewed Journal Article - August 2019
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NIOSHTIC2 Number: 20056651
Min Metall Explor 2019 Aug; 36(4):741-749
Video techniques for monitoring exposure, such as NIOSH’s “Helmet-CAM,” employ both real-time dust monitors and mobile video cameras to assess workers’ respirable dust exposures. Many real-time personally worn dust monitors utilize light scattering sensing elements, which are subject to measurement biases as a function of dust type (size, composition, shape factor) and environmental conditions such as relative humidity. These biased and inaccurate dust measurements impair the monitor’s ability to properly represent actual respirable dust concentrations. In the testing described, instrument mass concentration data was collected using three different types of commonly used commercial off-the-shelf personal dust monitors and compared to a reference standard. This testing was performed in a calm air (Marple) dust chamber in which three units of each make and model (for a total of nine monitors) were used for each test. Equivalency factors (EF, a multiplier to match the Thermo TEOM 1400a reference instrument) ranged between 0.746 and 1.879 across all dusts and environmental conditions tested, and between 0.821 and 1.519 on the ISO test dust.
First page of Performance Comparison of Real-Time Light Scattering Dust Monitors Across Dust Types and Humidity LevelsPeer Reviewed Journal Article - August 2019
Go to Web Page
NIOSHTIC2 Number: 20056651
Min Metall Explor 2019 Aug; 36(4):741-749
See Also
Determining the Spatial Variability of Personal Sampler Inlet Locations
Equivalency of a Personal Dust Monitor to the Current United States Coal Mine Respirable Dust Sampler
Laboratory and Field Performance of a Continuously Measuring Personal Respirable Dust Monitor
Laboratory Evaluation of Pressure Differential-based Respirable Dust Detector Tube
Miners' Views about Personal Dust Monitors
Miners' Views About Personal Dust Monitors
Performance of a Light Scattering Dust Monitor at Various Air Velocities: Results of Sampling in the Active Versus the Passive Mode
Performance of a Light-scattering Dust Monitor in Underground Mines
Real-Time DPM Ambient Monitoring in Underground Mines
The Use of Light Scattering and Ion Chamber Responses for the Detection of Fires in Diesel Contaminated Atmospheres
Page last reviewed: May 20, 2020
Page last updated: May 20, 2020
Content source: National Institute for Occupational Safety and Health, Mining Program
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