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条条途径入人体毒物能否对人体形成危害,关键在于它们能否进入人体。不同毒物有不同的侵入途径,即使同一种毒物如以不同状态存在,进入人体的途径也不相同,所以,从事劳动保护工作要认真研究毒物进入人体的途径。一般来说,毒物进入人体有三条途径:一是由呼吸道进入:这是毒物进入人体最捷便的一条通道。呼吸是人体的正常生理功能,在安静状况下,每分钟可吸入6至8升空气。劳动时吸气量加大,工人在一日八小时劳动中要吸入十至十二立方米的空气。毒害物质随着呼吸可进入体内。毒物
The key point is whether they can enter the body or not if human poison can form a hazard to the human body. Different poisons have different routes of entry. Even if the same poisons exist in different states, the access to the human body is not the same. Therefore, labor protection should be carefully studied in the pathways into which human beings enter the human body. In general, poison enters the body in three ways: First, by the respiratory tract into: This is the most convenient way to enter the body of poison. Breathing is the normal physiological function of the body and can breathe 6 to 8 liters of air per minute under quiet conditions. During work, the amount of inspiration increases, and workers take in 10 to 12 cubic meters of air during their eight-hour work day. Poisonous substances can enter the body with breathing. poison