news.yahoo.co.jp/articles/debbf631c58960bb2f37d048a3325f28c3ced95e
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米国で群衆統制のために使われる催涙ガス、健康に与える影響──毒物学者が解説（Forbes JAPAN） - Yahoo!ニュース
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This page explains the health impacts of tear gas used for crowd control in the United States, according to medical toxicology experts. Tear gas is actually a solid chemical dissolved in solvent, not a gas. When exposed to eyes, throat, and skin, it causes irritation, excessive tearing, sneezing, coughing, and breathing difficulty. Severe exposure can result in chemical burns or pulmonary edema. Recommended response includes leaving the area, removing contaminated clothing, and rinsing eyes with cold water for 15+ minutes until symptoms subside.
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