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Coal miners have long faced risk of black lung disease. Now they're getting new protectionsa separate hazard created by crushing or pulverizing coal rock that also contributes to black lung. In the decades since, silica dust has become a major problem as Appalachian miners cut through ...
a separate hazard created by crushing or pulverizing coal rock that also contributes to black lung. In the decades since, silica dust has become a major problem as Appalachian miners cut through ...
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