人体对氯的嗅阈为0.06mg/m^3; 90mg/m^3(28PPM),可致剧咳; 120~180mg/m^3(38PPM), 30~60min可引起中毒性肺炎和肺水肿; 300mg/m^3(95PPM)时,可造成致命损害; 3000mg/m^3时,危及生命; 高达30000mg/m^3(9478PPM)时,一般滤过性防毒面具也无保护作用。
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