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1994年7月5日7时许，富阳市某化工厂一辆装有5000kg硫酸二甲酯（DMS）的运输车，在途经富阳镇桂花西路（闹市区）时，因急刹车造成DMS贮桶破裂，约200kgDMS外泄。据气象台站报告，当时气温32℃，风速1．5m／s，气压100．18kPa。外泄的DMS迅速气化，向周围弥散。吸入毒气的人群
July 5, 1994 7 am, a chemical plant in Fuyang City, a vehicle containing 5000kg of dimethyl sulfate (DMS), passing Fuyang Town, Guihua West Road (downtown), due to an emergency brake DMS storage Bucket burst, about 200kgDMS leak. According to the weather station report, when the temperature 32 ℃, wind speed 1.5m / s, pressure 100.18kPa. The excreted DMS gasifies rapidly and disperses to the surroundings. Inhaled gas crowd