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1988年8月4日下午3时,贵州省某市二化厂运输硫酸二甲酯的车辆在某县龙溪镇街上发生故障停车约30分钟。当时正值龙镇赶场高峰,车停10分钟后即有人发生中毒,此后中毒人数逐渐增多,症状逐渐加重。经调查,自从车上流出难闻液状物后,在附近居住、设摊及停留时间较长的人群均无幸免。据统计,当时暴露人数约700人,中毒人数400人左右,最小的4岁,最大的70岁。所调查的64人都出现不同程度的结膜水肿、流泪、怕光、异物感、流涕、咽喉疼痛、胸闷、咳嗽、发音困难等中毒症状。同时在污染地周围约
At 3:00 p.m. on August 4, 1988, vehicles that transport dimethyl sulfate in the Second Chemical Plant of a certain city in Guizhou Province stopped for about 30 minutes in the street of Longxi Town in a certain county. Was at the peak of the town rush hour, 10 minutes after the car was poisoned, poisoning gradually increased, the symptoms gradually aggravated. It has been investigated that no one living in the neighborhood, setting up a stall or having a longer stay has survived since the vehicle was inundated with unpleasant liquid. According to statistics, there were about 700 people exposed at that time, about 400 people were poisoned, the youngest was 4 and the youngest was 70. The survey of 64 people have varying degrees of conjunctival edema, tears, photophobia, foreign body sensation, runny nose, sore throat, chest tightness, cough, dysphonia and other symptoms of poisoning. Around the same time polluting