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underground and surface mining facts

Of the 52 occupational mining fatalities reported to MSHA in 2008, 20 occurred at underground work locations, while 32 occurred at surface locations. The fatality rate of 32.0 95 confidence interval CI 19.5, 49.4 per 100,000 FTE employees was higher at underground work locations, compared to the rate of 12.9 CI 8.8, 18.3 for surface

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