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窒息性气体是指人吸入后可引起机体缺氧,从而发生窒息的气体,可分为单纯窒息性气体和化学性窒息性气体。单纯窒息性气体是指本身不具毒性,但当其含量较高时,能排挤空气中的氧气,使空气中氧浓度降低,导致人体缺氧,如二氧化碳、甲烷、氮气等。化学性窒息性气体是指进入人体后,使血液的运氧能力或组织利用氧的能力发生障碍,造成人体组织缺氧的有害气体,如一氧化碳、硫化氢、氰化氢等。窒息性气体的危害
Asphyxiating gas refers to a person can cause hypoxia caused by inhalation, resulting in asphyxia gas, can be divided into simple asphyxia gas and chemical asphyxia gas. Simple asphyxia gas itself is not toxic, but when its content is high, the oxygen in the air can be squeezed out, the oxygen concentration in the air decreases, leading to human hypoxia, such as carbon dioxide, methane, nitrogen and so on. Chemical asphyxiant gas refers to enter the human body, so that the ability of oxygen or oxygen in the blood flow of tissue barriers, resulting in human tissue hypoxia harmful gases, such as carbon monoxide, hydrogen sulfide, hydrogen cyanide and so on. Asphyxial gas hazards