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Mining Contract: Miniaturized Wearable Personal Dust Exposure Monitor for Respirable and Alveolar Dust in Underground Coal Mines
Keywords: Personal dust monitors Respirable dust
This page is archived for historical purposes and is no longer being maintained or updated.
Contract #
200-2016-91153Start Date
9/1/2016End Date
8/31/2018Research Concept
Respirable dust exposure in underground coal mines continues to be a major concern for miners and mine operators. Claims to the U.S. Department of Labor’s Black Lung Program are on the rise. Alarmingly, an especially severe form of the disease, progressive massive fibrosis, has recently been identified in a higher-than-expected number of miners. Miners have expressed an interest in more frequent dust sampling but often complain about the presently available equipment’s bulky size and weight. A smaller, more lightweight, and less expensive device for everyday dust exposure monitoring is needed.
Contract Status & Impact
This contract is complete. To receive a copy of the final report, send a request to mining@cdc.gov.
Respirable dust—particles that are so small they are deposited into the lungs when inhaled—are imperceptible to the naked eye, but the effects can be long-lasting and permanent. Black lung disease causes irreversible breathing problems that affect quality of life and often lead to disability and premature death.
Historic dust sampling equipment only provided an average dust concentration over the entire sampling period, not dynamic data as conditions changed within a shift. The recently implemented continuous personal dust monitor (PDM) provides time-correlated data, but is bulky and heavier than desired. Currently, MSHA regulations require that coal mines check for respirable coal mine dust exposures for certain high-risk occupations over the course of 15 consecutive shifts each calendar quarter. The current version of the PDM offers information to workers while in the mine and has led to improvements in complying with applicable dust standards.
Many miners have said they would like to use a continuous PDM to monitor their dust exposure even when it’s not a designated sampling period. However, the weight, bulkiness, and expense have hindered use of this instrument beyond that required for compliance sampling.
This contract seeks to address this problem by designing and developing a miniaturized personal dust monitor that could be worn on a lapel or clipped to a miner’s clothing. The low-cost device will integrate numerous technologies that will analyze the separated components of the sample and offer the wearer a real-time readout of their dust exposure.
See Also
Analysis of Particulate Contamination in Personal Dust Monitor Sampling
Continuous Respirable Mine Dust Monitor Development
Continuous Respirable Mine Dust Monitor Development
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
An Overview of Fundamental and Emerging Technologies to Monitor and Control Respirable Dust in Underground Coal Mines in the United States
Performance of a New Personal Respirable Dust Monitor for Mine Use
Page last reviewed: January 31, 2023
Page last updated: February 1, 2018
Content source: National Institute for Occupational Safety and Health, Mining Program
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