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Mustard gas can remain in the ground for weeks, and it continues to cause ill effects. If mustard agent contaminates one's clothing and equipment while cold, then other people with whom they share an enclosed space could become poisoned as contaminated items warm up enough material to become an airborne toxic agent.
All blister agents currently known are denser than air, and are readily absorbed through the eyes, lungs, and skin. Effects of the two mustard agents are typically delayed: exposure to vapors becomes evident in 4 to 6 hours, and skin exposure in 2 to 48 hours. The effects of Lewisite are immediate.
Lewisite (top row) and mustard gas test with concentrations from 0.01% to 0.06%. It can easily penetrate ordinary clothing and latex rubber gloves. Upon skin contact it causes immediate stinging, burning pain and itching that can last for 24 hours. Within minutes, a rash develops and the agent is absorbed through the skin.
Effects depend on the substance; hydrogen peroxide removes a bleached layer of skin, while nitric acid causes a characteristic color change to yellow in the skin, and silver nitrate produces noticeable black stains. Chemical burns may occur through direct contact on body surfaces, including skin and eyes, via inhalation, and/or by ingestion.
Eye exposure to lewisite can cause permanent visual impairment or blindness. [4] The eyes can swell shut, which can keep the eyes safe from further exposure. The most severe consequences of eye exposure to lewisite are globe perforation and blindness. [4] Generalised symptoms also include restlessness, weakness, hypothermia and low blood pressure.
6. Worms and other parasitic infections. With heavy worm burdens or certain parasitic infections, dogs can vomit. You may see worms in the vomit, but an absence of worms doesn’t mean parasites ...
The effect of vesicant (blister) agents in the form of mustard gas (sulfur mustard, Bis(2-chloroethyl) sulfide) on bone marrow and white blood cells had been known since the First World War. [16] In 1935 several lines of chemical and biological research yielded results that would be explored after the start of the Second World War.
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