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. "4 Health and Safety Risks and Benefits." Evolutionary and Revolutionary Technologies for Mining. Washington, DC: The National Academies Press, 2002.
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FIGURE 4-1 U.S. mine fatalities, 1910 to 1999. SOURCE: Katen, 1992; Ramani and Mutmansky, 2000; U.S. Department of Labor, 1999.
FIGURE 4-2 Nonfatal lost workdays, 1978 to 1997. SOURCE: Raja Ramani and Mark Radomsky.