为了解我市市售铅笔涂漆层铅含量状况 ,及其对我市中小学生健康危害程度 ,我们于 1998年 6月进行了调查 ,现将调查结果报告如下。1　材料与方法1.1　样本采集　样本采自我市所有大中小批发及大型零售商场。不同产地、品牌、型号各采 1份 ,每份 10支 ,共收集样品 2 8份。1.2　检 In order to understand the condition of the lead content of commercially available pencils in our city and its health hazards to students in primary and secondary schools in our city, we conducted a survey in June 1998 and report the findings as follows. 1 Materials and methods 1.1 Sample collection Samples were collected from all large, medium, small wholesale and large retail malls in the city. Each production site, brand, and model number is used for 1 sample, 10 pieces for each, and a total of 28 samples are collected. 1.2 Check