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| Longwall shearer operating in lower seam |
Background
Analyses of data obtained from the National Coal Workers’ X-Ray Surveillance Program along with data obtained from the Miners Choice x-ray program have shown that mine workers from small mines in the southern Appalachian region are showing almost three times the national average of CWP and nearly five times the rate of pulmonary massive fibrosis (PMF). In response, NIOSH is initiating a program to implement improved dust control technologies into these mines to address this problem. NIOSH researchers will utilize MSHA compliance sampling results to identify mines of interest in the southern Appalachian region. Researchers will then visit MSHA offices in the region to gather and analyze data from dust control plans on file for each mine. Information from mine inspector reports on production rates, mine equipment types, mining practices, and other characteristics specific to the mines will also be noted. Dust surveys will be conducted at selected mines to determine problem areas, to assess the state of control technology being employed, and to determine where additional control technology is needed. The small mines involved may require individual dust control technologies because of their limited budgets and specific operating conditions. NIOSH will conduct laboratory and field research to optimize existing technologies and to develop new technologies that will have a higher probability of acceptance and success in these mines.
Potential Outcome
As NIOSH researchers learn what dust control technologies are the most practical for these small operations, regional workshops will be conducted to transfer findings to mine operators and miners to improve knowledge about successful dust controls. By 2007, NIOSH researchers should have an initial understanding of why these mining operations have such a high prevalence of CWP. By 2008, information on how to control the dust in these mines effectively and economically should be available for publication. The potential future impact is that cost-effective dust control technology specific to these small mines will be developed and implemented with a high likelihood of having a positive impact on reducing the rate of both CWP and PMF.