![]() Respiratory lethal dosages kill in 1 to 10 minutes, and liquid in the eye kills almost as rapidly.Ĭt (Concentration time mg Although skin absorption great enough to cause death may occur in 1 to 2 minutes, death may be delayed for 1 to 2 hours. Symptoms appear much more slowly from a skin dosage than from a respiratory dosage. Although only about half as toxic as GB by inhalation, GA in low concentrations is more irritating to the eyes than GB.Death usually occurs within 15 minutes after absorption of a fatal VX dosage. GB and VX doses which are potentially life-threatening may be only slightly larger than those producing least effects.Some nerve agents have a faint fruity odor. In an impure state nerve agents may be encountered as yellowish to brown liquids. ![]() In the pure state nerve agents are colorless and mobile liquids. It is regarded as presenting little vapor hazard to people exposed to it. VX is a relatively non-volatile liquid and therefore persistent. GD is also significantly volatile, as is GA though to a lesser extent. At room temperature GB is a comparatively volatile liquid and therefore non-persistent. Some “G” agents may be thickened with various substances in order to increase their persistence, and therefore the total amount penetrating intact skin. The “G” agents tend to be non-persistent whereas the “V” agents are persistent. They were developed just before and during World War II and are related chemically to the organophosphorus insecticides. The nerve agents are a group of particularly toxic chemical warfare agents. Excluded from this definition are riot control agents, herbicides, smoke, and flame. A chemical agent is a substance which is intended for use in military operations to kill, seriously injure or incapacitate people because of its physiological effects.
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