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Methane represents a considerable danger in
abandoned mines. Methane (CH4), set free from coal, gets to
the surface by migration. It can get to surface pits and
tunnel systems or other comparable cavities. In connection
with air, methane can produce inflammable and explosive
mixtures. There is special danger if the methane gas migrates
from the cavities or directly from the soil in the existing
drains systems. The safety risk is not calculable. Likewise
methane can be set free when building work is done. Thus
setting free methane moves into the center of environmental
questions when speaking about danger warning and planned
projects. |
