Chemical weapons of deadly poison gas, sarin nerve

Chemical weapons of deadly poison gas, "sarin" nerve

By the Aum Shinrikyo sarin attack in Matsumoto City
(More than 200 victims, seven people died),
(Approximately 5,500 victims, 12 people died) and sarin gas attack on the Tokyo subway system,
Since the alleged manufacturing of Iraq and Sudan, it became suddenly famous
Is a kind of chemical weapons and poison gas sarin and VX called.
Poison gas has been developed for the purpose of killing human beings purely in this way,
(April 1915) against western Germany during the First World War,
It is said that the first chlorine gas was used to front with the Canadian Forces.


Since then, until the end of the First World War,
Of the French army, such as mustard (mustard gas) gas
Many kinds of poison gas was used.
Meeting in Geneva was held in conjunction with a die at the end of World War (25 years),
Wartime use of poison gas was forbidden, but, even then, maybe of the year 36 (tabun),
Of 38 years, such as sarin (sarin), to organophosphate pesticides for pesticide
Development of organophosphate poison gas of similar structure was underway.
At the end of World War II, probably because fortunately, was of each other for fear of reprisals,
Be used in combat was not.
These organic phosphorus-based poison gas, a neural circuit in the body
Are known to interfere with nerve gas.

When the excited nerve cells, a substance called acetylcholine,
Are released into the small space called a synapse connecting portion,
That this is to reach the receptor of nerve and muscle cells following
The transmitted signal is then from the next, to receive the following signals
Acetylcholine must be resolved immediately.
However, these poison gas of organic phosphorus,
Enzyme that breaks down acetylcholine and this (cholinesterase)
Would inhibit its action and joined to the (anti-esterase),
The accumulation of excess acetylcholine in the synaptic
Nerve cells then you will not be able to convey the signal.
Currently, sarin (agent GB), soman (agent GD),
In a typical nerve agent (VX) tabun,
Median lethal dose is 0.4 milligrams from 0.1 milligrams just said.
And this poison gas from the skin as well as from the respiratory
Is absorbed, only a gas mask does not prevent.


Being used as a poison gas, the toxicity (1) is high,
Rapid effects (2), easy to spray (3), which is absorbed from the skin (4),
After spraying (5), toxicity is lost over time,
Can be stored (6), because there are other features, is inexpensive (7).
For this reason, the poison gas used as chemical weapons,
In addition to these organic phosphorus is about mustard gas and cyanide gas.
Type of non-poison gas murder, in order to prevent gas mask easily,
Does not exist except for the several types of suppression used by the mob.
When exposed to this poison gas, and this also acetylcholine
Alkaloid atropine as an antidote to antagonize, of organophosphorus pesticides
Has been developed, such as PAM is used.
So to speak, I did win the poison with poison.