Coal mining kills in five ways: collapsing ground, explosive methane, carbon monoxide, dust, and fire in the coal itself. The safest approach is to mine from the surface, never alone, with a second exit, no naked flame underground, and a decision made in advance to stop at the first sign of gas, fire or roof movement.
Part of Coal Surface Mining
The hazards of hand-mining coal and the rules that deal with them, from ground collapse and gas to dust and spontaneous heating.
Five Hazards Account For Nearly All The Deaths
Ground. Surface highwalls and underground roofs both fall. The parent article calls roof collapse the primary killer in coal mining. See Roof Collapse Prevention.
Methane. Coal measures can release methane (CH₄), which is colourless, odourless and explosive between roughly 5% and 15% in air. See Gas Hazards.
Carbon monoxide. Produced when coal smoulders or burns with too little air; it kills without warning. Oxygen-poor air with carbon dioxide collects in low spots.
Dust. Coal dust causes the lung disease pneumoconiosis over years of exposure, and a cloud of fine coal dust can itself explode. See Dust & Respiratory Protection.
Fire in the coal. Stockpiled and freshly exposed coal can heat itself by slow oxidation and ignite without any outside flame. See Storage & Weather Protection.
Rules That Apply To Every Method
- Prefer the surface. If the seam can be worked open-cut, do not go underground.
- Never work alone. One person stays at the entrance or the top of the cut.
- Two ways out underground. A single dead end traps people.
- No naked flame underground. Light and ignition are the same problem when there may be methane.
- Stop on warning. Dull roof sound, falling dust, headache, drowsiness, a flame that lengthens or goes out: go out, then think.
- Never go in after a casualty without air. The rescuer dies in the same atmosphere. Haul with a rope from outside, ventilate, then enter (Safety Protocol makes the same rule for well shafts).
- Count heads. A tally of who is in and who is out, kept at the entrance.
Be Honest About What Cannot Be Eliminated
Coal-dust lung disease cannot be made safe, only slowed. Every shift in a dusty place adds to a lifetime total. Plan the mining so that the fewest people breathe the least dust for the shortest time, and accept that anyone who works the face year after year is accepting a disease.
Common Mistakes
- “It looks stable.” Roof falls often give no sign.
- Trusting a bare candle as a gas detector. A flame in a methane-bearing roof ignites the gas.
- Continuing after the first warning.
Safety
Coal mining is among the deadliest ways to get fuel
Weigh whether you need coal at all. Wood from a managed coppice and cut peat carry far lower underground risks. If you mine, mine open-cut and shallow.
What’s Next
- Learn next: Roof Collapse Prevention — the biggest killer in detail
- Combine with: Bleeding Control — what to do when a person is injured