某家用电器厂进行配电箱酸洗工序过程中 ,将产生的盐酸雾直接排向某小学 ,使 19人发生急性轻度氯化氢中毒 ,33人发生刺激反应 ,事故调查如下。1　现场卫生学调查1999年 3月 2 4日上午 9:0 0左右 ,某校正在上课的二年级师生感觉一股刺激难闻的气味扑鼻而来 ,只见白色烟雾从北面 A home appliance factory distribution box pickling process, the resulting mist directly to a primary school of mercury, so that 19 people had mild mild hydrogen chloride poisoning, irritation occurred in 33 reactions, the accident investigation is as follows. 1 On-site Hygiene Survey On the morning of March 24, 1999, at 9:00 a.m., a correctional grade two teacher and student in the class felt an unpleasant smelling smell of nostrils. I saw white smoke from the north