abstract: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 gases left after oxygen is removed from the air and typically consists of nitrogen, carbon dioxide and water vapour.
N
air that is low in oxygen content and high in carbon dioxide as a result of an explosion in a mine 窒息性气体; 因为矿井内爆炸，而产生的氧气含量低而一氧化碳含量高的气体 (Also called chokedamp)