Toxic gases in mining

Rapid detection of causes of mining accidents leading to emergencies is to search the efforts. Controlling fires and gas leaks provides an immediate approach to rescue work for fatalities or injuries and detecting who needs resuscitation outside the mine. Evacuation and recovery operations should be guided by continuous monitoring of the mine environment due to fire and explosion hazards. The main toxic gases in mines are carbon monoxide (CO) and carbon dioxide (CO2); flammable gases are methane (CH4), CO and hydrogen (H2); suffocating gases are CO2, nitrogen (N20) and CH4; and the toxic gases are CO, nitrogen oxides (NOx) and hydrogen sulfide (H 2 S).