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铅是一种在工农业生产中应用十分广泛,又与人们的生活有着密切关系的金属,使用铅或铅的化合物的工业行业多达三、四百种之多。铅既有其利于四化建设的一面,又有对人体有害的一面。当一定数量的铅烟和烟尘随着空气和附着在食物表面从呼吸道和消化道进人人体后,它能对健康造成不同程度的危害,引起铅中毒.人接触铅的机会越多,发生铅中毒的可能性就越
Lead is a metal that is widely used in industrial and agricultural production and closely related to people’s lives. As many as three or four hundred kinds of industrial products use lead or lead compounds. Lead has both its benefit to the four modernizations, but also harmful to the human body. When a certain amount of lead smoke and dust enter the human body through the airways and digestive tract along with the air and attach to the surface of the food, it can cause different levels of health hazards and cause lead poisoning. The more opportunities for people to contact with lead, the more lead The more likely it is to poison