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Carbon dioxide — Carbon dioxide … Wikipedia
Blackdamp — (also known as stythe or choke damp) is an asphyxiant, reducing the available oxygen content of air to a level incapable of sustaining human or animal life. It is not a single gas but a mixture of unbreathable gasses left after oxygen is removed… … Wikipedia
Asphyxiant gas — dablink|For main article see Asphyxia. An asphyxiant gas is a non toxic or minimally toxic gas which dilutes or displaces the oxygen containing atmosphere, leading to death by asphyxiation if breathed long enough. Toxic gases in large enough… … Wikipedia
Damp (mining) — Historically, gases (other than breathable air) in coal mines in Britain were collectively known as damps . This comes from the Middle Low German word dampf (meaning vapour ), and was in use by 1480 [1]. Damps included: After damp, a mixture of… … Wikipedia

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