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Mining is a hazardous occupation, and the safety of
mine workers is an important aspect of the industry.
Statistics indicate that surface mining is less
hazardous than underground mining and that metal
mining is less hazardous than coal mining. ---- In all
underground mines, rock and roof falls, flooding,
and inadequate ventilation are the greatest hazards.
Large explosions are characteristic in coal mines,
but more miners suffer accidents from the use of
explosives in metal mines.