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密闭空间的职业危害急性职业中毒事故多发生在密闭空间作业中,常见密闭的空间有洞穴、隧道、下水道和其他出入孔道、化粪池、锅炉、船舱、地窖等。密闭空间存在的职业危害主要包括:硫化氢、一氧化碳、甲烷、氮氧化合物、触电、机械损伤、塌陷、生物因素等。预防密闭空间职业危害事故的原则1、要对密闭空间内防爆、缺氧和有毒气体情况进行持续的监测;2、要在开始作业前对密闭空间进行持续的通风换气;
Occupational hazards in confined spaces Acute occupational poisoning occurs in confined space operations. Common confined spaces include caves, tunnels, sewers and other access openings, septic tanks, boilers, cabins and cellars. Occupational hazards in confined spaces include: hydrogen sulfide, carbon monoxide, methane, nitrogen oxides, electric shock, mechanical damage, collapse, biological factors and so on. Prevention of occupational hazards in confined space Principle 1, to be in a confined space explosion, oxygen and toxic gases continued to monitor the situation; 2, to be started before the operation of airtight space for continuous ventilation;