black lung disease black lung disease

David Zatezalo, the Assistant Secretary of Labor for Mine Safety and Health, was asked about the advanced black lung epidemic at a congressional hearing in Washington, D.C., on Feb. 6, 2018. Huo Jingnan/NPR hide caption

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Huo Jingnan/NPR

Black Lung Study Finds Biggest Cluster Ever Of Fatal Coal Miners' Disease

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A display case at NIOSH shows a normal lung and a diseased black lung, caused by inhaling coal dust and other harmful particles while coal mining. Howard Berkes/NPR hide caption

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Howard Berkes/NPR