中文摘要：

对桂林市6个城区交通警察按年龄、工龄、工种和性别比例采集发样95件,测定和研究发样Hg、Pb分布状况,并采集普通人群发样110件加以对照.结果表明,车流量越大,从事交警的职业年限越长,交警发样的Hg、Pb含量越高.从事外勤工作交警发样Hg、Pb平均含量高于内勤工作交警.桂林市交警发样Hg平均含量为1.340μg·g-1,是中国居民头发Hg平均值（0.77μg·g-1）的1.74倍;而Pb平均含量为2.877μg·g-1,则低于中国居民头发Pb平均值（6.60μg·g-1）.无Pb汽油的使用降低了大气中Pb的污染,但Hg的污染依然存在.男性交警头发Hg平均含量为1.504μg·g-1,高于女性交警平均含量（1.176μg·g-1）,而Pb的平均含量在2.852μg·g-1,则低于女性交警发Pb平均含量（2.902μg·g-1）.

英文摘要：

95 hair samples from traffic polices and 110 hair samples from ordinary people were collected from 6 areas of Guilin,China,and Hg,Pb contents in hairs were determined.The result shows that the heavier the traffic was,the higher hair Hg,Pb contents of traffic polices are.Hair Hg,Pb contents of traffic polices also increase with their working time.Average hair Hg,Pb contents of outdoor polices are higher than those of indoor polices.The average hair Hg content（1.340 μg.g-1） of traffic polices is 1.74 times as high as the Chinese average value（0.77 μg.g-1）,while the average hair Pb content（2.877 μg.g-1） is below the Chinese average value（6.60 μg.g-1）.The use of unleaded petrol reduced the air Pb pollution,but Hg pollution still exists.The average hair Hg content（1.504 μg.g-1） in male traffic polices is higher than that（1.176 μg.g-1） of female traffic polices,while the average hair Pb content（2.852 μg.g-1） in male traffic polices is lower than that（2.902 μg.g-1） of female traffic polices.