Exposure to lewisite

Toxicity of LewisiteLewisite is not present naturally in the environment.

Exposure to the chemical is not possible unless lewisite gas or liquid was deliberately released in the air, water or food supply. The problem is that lewisite liquid once released in a certain area does not disperse easily and may remain in the environment unknown to new comers. Ingestion of the chemical can happen when the contaminated water is drank or contaminated food is eaten. Lewisite in gas form is dangerous not only upon inhalation but also upon contact with skin. The problem is that lewisite can easily penetrate clothing and even rubber so that if there is any in the air exposure is almost guaranteed.

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