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Occupational Hazards In Coal Mining

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Occupational Hazards Dangerous Conditions in the US Apr 21 2010 Occupational Hazards Dangerous Conditions in the US Mining Industry 21 April 2010 class issues justice politics work black lung mining occupational health union s e smith Here in the United States headlines have been blaring over the last few weeks about the 29 coal miners killed in West ia at the Upper Big Branch

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