Toxic gas mixture resulting from coal mining explosions.
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Afterdamp is the toxic mixture of gases left in a mine following an explosion caused by methane-rich firedamp, which itself can initiate a much larger explosion of coal dust.[1] The term is etymologically and practically related to other terms for underground mine gases—such as firedamp, white damp, and black damp, with afterdamp being composed, rather, primarily by carbon dioxide, carbon monoxide and nitrogen, with highly toxic stinkdamp-constituent hydrogen sulfide possibly also present. However, the high content of carbon monoxide is the component that kills, preferentially combining with haemoglobin in the blood and thus depriving victims of oxygen.[not verified in body] Globally, afterdamp has caused many of the casualties in disasters of pit coalfields, including British, such as the Senghenydd colliery disaster. Such disasters continue to afflict working mines, for instance in mainland China.
^"After-damp". A Glossary of Mining and Metallurgical Terms. Easton, Pennsylvania: American Institute of Mining Engineers. 1881.
Afterdamp is the toxic mixture of gases left in a mine following an explosion caused by methane-rich firedamp, which itself can initiate a much larger...
underground mine gases such as fire damp, white damp, stink damp, and afterdamp. The meaning of "damp" in this term, while most commonly understood to...
hazardous because of the after effects of the explosion. Gases known as "afterdamp" – carbon dioxide, carbon monoxide and nitrogen produced by the explosion...
underground mine gases such as firedamp, black damp, stink damp, and afterdamp. The meaning of "damp" in this term, while most commonly understood to...
combustion may occur during explosions resulting in the production of afterdamp. The gas is up to 3% CO and may be fatal after just a single breath. Following...
with its characteristic rotten-egg odour; and the insidiously lethal afterdamp (carbon monoxide and other gases) which are produced following explosions...
other injuries and 45 were killed by afterdamp. Eight men were rescued, but one died from the effects of afterdamp. Only 31 miners escaped. United Mine...
men in the western section bore the brunt of the explosion, fire and afterdamp—a poisonous mixture of carbon dioxide, carbon monoxide and nitrogen left...
dust explosions. The toxic mixtures of gases found in mines included afterdamp, blackdamp and whitedamp. His description of the way a flame safety lamp...
vast majority of mine animals, were killed by an asphyxiating gas called afterdamp that spread through the mine as they fled to the Millcreek Portal, several...
toxic, or explosive, or any combination of these. Afterdamp may also contain stinkdamp. Afterdamp may be a bigger killer following an explosion than...
of whom were members of the rescue party. All perished after inhaling afterdamp following the explosion. By 1936, of the original six pits opened at the...
ahead attempting to fan the air to mitigate the effects of the deadly afterdamp, they soon realised the other miners had not followed them. Jack Samuels...
carbonic acid gas) and carbon monoxide. The resulting mixture is called afterdamp and will suffocate and kill. Indeed, the gas forced its way through a...
force of the explosion, but rather were suffocated by the effects of afterdamp. The Mammoth mining complex consisted of the Mammoth No. 1 Mine (a shaft...
outright by the explosion, but most died of asphyxiation by whitedamp and afterdamp. Death came so quickly that some of the mine workers were found still...
engine. Deaths were mainly caused by carbon monoxide poisoning, known as afterdamp. Mitsubishi Hojyo coal mine disaster, occurred on 15 December 1914 at...
replacement of the core containment walls. Another concern is fusion afterdamp (debris left in the reaction chamber), which could interfere with subsequent...
were caused by the poisonous gases caused by explosions, particularly afterdamp or carbon monoxide. Survivors of explosions were rare and most apparatus...
level or tunnel to the surface for access or drainage purposes. AfterdampAfterdamp is a mixture of carbon monoxide and chokedamp which replaces atmospheric...
"old workings" when their candles set fire to firedamp. The resulting afterdamp and chokedamp resulted in a wider loss of life to men and horses. The...
foul with afterdamp. As the rescuers started to move into the affected area, the canaries carried were overcome almost at once. The afterdamp led to the...
casualties included concussions due to the explosion and suffocation from the afterdamp. A crowd of miners' families and curious onlookers quickly gathered at...
that day. A critical aspect to the science of firedamp explosions is the afterdamp, the aftermath mix of gases, which can be equally dangerous, if not more...
stinkdamp – hydrogen sulphide and other damps and afterdamp – the gas formed by an explosion. Afterdamp is particularly feared, it contains varying proportions...
foundations. Inside the mine, rails were twisted, roof supports were destroyed, afterdamp and coal dust filled the air, and the lamps of the surviving miners were...
explosions, blackdamp (locally called choak-damp [sic]), fire and the lethal afterdamp made any rescue attempt impossible. The suggestion was made that the pit...
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