Not long ago, a Beijing hotel renovation site waterproof paint poisoning, caused by the vicious consequences of one death and two injured in the incident, the cause of poisoning is a toxic gas workers in the use of waterproof coating construction waterproof paint and thinning release. According to survivors, the day of the incident, 3 people in the morning 8:20 start construction waterproof coating is coated, of which 1 workers found a gas mask work in the pool, work about 8 minutes later, 3 workers have been feeling unwell, 1 people fainted in the rescue process, the remaining two people have fainted after 20 minutes. The emergency center will poisoning rescue personnel rushed to the hospital, 1 of them to the hospital died, out of danger after the rescue the remaining two people. The workers who had not had a history of liver disease before poisoning showed elevated aminotransferase, and there was still no significant improvement. Poisoning is caused by the construction workers of poisonous gas workers in the use of waterproof coating during the construction of the release of raw materials, raw material is polyurethane waterproof coating workers in the market to buy a Beijing waterproof building materials production company, and Beijing paint factory production of nitro diluent.