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铅是有毒的重金属,是人类文明史中最严重的环境污染物之一,铅中毒对人体的危害非常大,如果人们长期摄入,将会影响人的造血、神经、肾脏和其他器官的功能。生活中的铅毒来源途径有哪些呢?我们对此进行了梳理。来源一:汽车尾气加入四乙基铅的汽油燃烧后,会从尾气中排出卤化铅粒子,在大气中再转化为氧化铅、碳酸铅等无机铅化合物,约有1/3的大颗粒铅尘迅速沉降在道路两旁数公里范围内的地面上,其余2/3则以气溶胶状态悬浮在大气中。有资料表明,儿童通过肺吸入的大气中的铅,50%是
Lead is a poisonous heavy metal and one of the most serious environmental pollutants in the history of human civilization. Lead poisoning is very harmful to the human body. If people take it for a long time, it will affect the function of human hematopoiesis, nerves, kidneys and other organs . What are the sources of lead poisoning in life? We have sorted out this. Source one: After the automobile exhaust gas of tetraethyl lead is burned, the lead halide particles will be discharged from the exhaust gas and then be converted into inorganic lead compounds such as lead oxide and lead carbonate in the atmosphere. About 1/3 of the large lead dust Quickly settling down the road within a few kilometers of the ground, the remaining two-thirds suspended in the aerosol state of the atmosphere. Data show that children lead through the lungs of the atmosphere of lead, 50% is