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2012年2月,广州荔湾、白云陆续发现38例职业性“胶水中毒”;2012年,温州市瓯海区“8·5”铝粉尘爆炸重大事故;2014年,昆山“8·2”铝粉尘特别重大爆炸事故。这些事故具有一个共同特点,就是主要发生在高危粉尘(含爆炸性粉尘)作业场所、高毒作业场所,以及存在易挥发可燃气体的场所,高度依赖通风系统来降低危险性。一旦通风系统出现故障或者停运,危险有害物质浓度将迅速升高,最终导致严重后果。
In February 2012, 38 cases of occupational “glue poisoning” were discovered in Liwan and Baiyun of Guangzhou. In 2012, an accident of “8.5” aluminum dust explosion occurred in Ouhai District of Wenzhou City. In 2014, Kunshan “8 · 2 ”Aluminum dust is a particularly serious explosion. Common to all these accidents is the high risk of dust (including explosive dust) workplaces, highly toxic workplaces, and the presence of volatile combustible gases, which rely heavily on ventilation systems to reduce the risk. Once the ventilation system fails or is out of service, the concentration of dangerous and hazardous substances will rapidly increase, eventually leading to serious consequences.