Assessment of Sub-micrometer-Sized Particles in an Underground Coal Mine
Author Information
Author(s): Chen Yi-Hsuan, Munoz Alejandro, Krause Connor, Brune Jürgen, Tsai Candace S. J.
Primary Institution: University of California, Los Angeles
Hypothesis
This assessment was designed to explore and characterize the airborne particles, especially for the sub-micrometer sizes, in an underground coal mine.
Conclusion
The study found high levels of submicron and nanoparticles in the underground coal mine, which could pose health risks to miners.
Supporting Evidence
- The belt entry had a nine-times higher total particle number concentration than the underground entry and office building.
- High levels of submicron and nanoparticles were found in the belt conveyor drift area.
- Particles collected contained harmful elements like Ca, Cu, Si, Al, Fe, and Co.
Takeaway
This study looked at tiny dust particles in a coal mine and found that they can be very harmful to miners' health.
Methodology
The study used real-time instruments and gravimetric samplers to measure airborne particles in different areas of the mine.
Limitations
The study's findings may not fully represent long-term exposure risks due to the specific conditions of the sampling.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website