论文部分内容阅读
目的对广州市部分学校、幼儿园及市场销售的油漆进行铅检测,评估儿童在学校环境中的铅暴露,为有关部门对我国的油漆管理提供依据。方法采用分层随机抽样方法,抽取广州市及郊县9所幼儿园和4所小学,对墙壁、门窗、桌椅等脱落油漆进行采样,共采集28个油漆样本;另外在31个油漆、五金销售部采集58个油漆样品。样品经前处理后用火焰原子吸收光谱仪检测其中的铅含量。结果28个脱落油漆样本中16个(57.1%)铅大于600mg/kg,6个(21.4%)大于5000mg/kg。58个市售油漆样本中29个(50%)总铅大于600mg/kg,14个(24.1%)大于5000mg/kg,按可溶铅评价有32个(55.2%)大于90mg/kg。结论广州市市售油漆和幼儿园、学校已使用的油漆铅含量均超标,这可能是儿童铅暴露的另一个重要来源,应引起重视。
Objective To test the lead in some schools, kindergartens and markets in Guangzhou to assess the lead exposure of children in the school environment and provide the basis for the relevant departments to paint management in our country. Methods A stratified random sampling method was used to collect 28 paint samples from 9 kindergartens and 4 primary schools in Guangzhou and suburban counties, to sample the exfoliated paints such as walls, windows and doors, tables and chairs, etc. In addition, 28 paint samples were collected. In addition, 31 paint and hardware sales Department collected 58 paint samples. Samples were pretreated with flame atomic absorption spectrometry to detect the lead content. Results Sixteen (57.1%) of the 28 shedding paint samples were greater than 600 mg / kg and six (21.4%) were greater than 5000 mg / kg. 29 (50%) of total lead in 58 commercially available paint samples were greater than 600 mg / kg, 14 (24.1%) were greater than 5000 mg / kg, and 32 (55.2%) were more than 90 mg / kg in soluble lead. Conclusion Guangzhou City, the paint and kindergarten on sale, schools have used paint lead content are exceeded, which may be another important source of lead exposure to children, deserves attention.