Choking Agents: Chlorine CBW Chlorine Of the 70,552 American soldiers poisoned with gasses during World War I, 1,842 were exposed to chlorine gas. First used as a chemical weapon at Ypres, France in 1915, chlorine gas acts a pulmonary irritant that causes acute damage in the upper and lower respiratory tract. By the end of World War I, Germany, France and the United Kingdom had all used chlorine gas. Not very efficient and in low concentrations, it was observed that even rudimentary protecti ...

Facts about Chlorine CDC What chlorine is Chlorine is an element used in industry and found in some household products. Chlorine is sometimes in the form of a poisonous gas. Chlorine gas can be pressurized and cooled to change it into a liquid so that it can be shipped and stored. When liquid chlorine is released, it quickly turns into a gas that stays close to the ground and spreads rapidly. Chlorine gas can be recognized by its pungent, irritating odor, which is like the odor of bleach. ...