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Silica Sand Effect

1938 34Stop Silicosis34 Video. The hazard of respirable crystalline silica exposure has been known for decades. This 1938 video features former Secretary of Labor, Frances Perkins 19331945, and describes both the hazards associated with silica exposure and the U.S. Department of Labor39s early efforts to ensure safe and healthful working conditions for America39s working men and women.

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Silica Sand Effect

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