blackdamp

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Related to Black damp: White damp, mine damp

blackdamp

[′blak‚damp]
(mining engineering)
A nonexplosive mixture of carbon dioxide with other gases, especially with 85-90% nitrogen, which is heavier than air and cannot support flame or life. Also known as chokedamp.
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References in periodicals archive ?
Persimmon and Bellway Homes have declined to tell local people and The Journal about the outcome of a study into whether stythe, also known as black damp, could endanger public health at their site at Cramlington.
Stythe - also known as black damp - has resulted in previous fatalities in the UK, and its presence has led to some homes in Cramlington having to be evacuated and monitored in the past.
Suddenly there was a bang, a smell of black damp, methane gas, and shouts of "run''.