Coal mining is also dangerous while digging and mining; many fatalities occur as a result of excessive digging and getting trapped under the debris. Oxygen level depreciates as caves are dug deeper and deeper, eventually leading to respiratory .
Technical Report: Danger of open lamps in coal mines. Danger of open lamps in coal mines. Full Record; Other Related Research; Abstract. Dangers are considered and rigid inspection to prevent uses of open lights in gassy atmosphere is urged. Authors: Ilsley, L C; von Bernewitz, M W