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对一起致死3人的中毒事故开展现场职业卫生调查,并对作业场所中的危害因素进行检测,最终认定此次事故系因污水处理站好氧池加盖塑料棚后形成了受限空间,废水在生化处理过程中产生的硫化氢大量聚集在塑料棚内引起;施救人员未佩戴任何防护装备盲目施救,造成人员伤亡进一步扩大。提示在可能产生有毒物质工作场所进行安全生产和教育的重要性。
Conduct on-site occupational health survey on the poisoning accident involving 3 dead people together with the detection of the hazardous factors in the worksite. Finally, it is concluded that the accident was confined by the plastic shed of the sewage treatment station aerobic tank and the waste water Hydrogen sulfide generated in the biochemical treatment process caused a large number of accumulation in the plastic shed caused; rescue workers did not wear any protective equipment blind rescue, resulting in further expansion of casualties. Prompted the safety of production and education in the workplace may produce toxic substances.