铅做为一种防爆剂加入汽油中,因此,铅对于环境的污染日益引起人们的重视。许多学者研究了汽车尾气中所含的铅对人体的危害。这些研究发现,生活在公路、高速公路或繁华地区附近的人群,平均血铅浓度明显高于远离这些区域的对照组。交通警察接触汽车尾气较多,许多国家的材料都证实了交通警察血铅浓度较高。本文报告,近十年来德黑兰市汽车增加,400万人口城市,汽车超过100万辆,每年消耗汽油10亿升,其中含铅320吨。作者用无火焰原子吸收法测定了该市228名交通警察的血铅水平并同该地区68名办公室工作的警察进行了比较。228名交通警察血铅浓度为 Lead is added as a kind of explosion-proof agent into gasoline. Therefore, the pollution of lead to the environment is drawing more and more attention. Many scholars have studied the harmful effects of lead contained in automobile exhaust on the human body. These studies found that people living on highways, highways or in bustling areas had significantly higher mean blood lead levels than those who were far away from these areas. Traffic police exposed vehicle exhaust more, many countries have confirmed the high blood lead levels of traffic police. This paper reports that over the past ten years Tehran has seen an increase in cars, 4 million in population and more than 1 million cars. Each year, it consumes 1 billion liters of gasoline, including 320 tons of lead. The authors measured blood lead levels in 228 traffic policemen in the city using flameless atomic absorption spectrometry and compared them to those in the 68 offices in the area. 228 traffic police blood lead levels