al-Mahroos F, al-Saleh F S
Department of Pediatrics, Arabian Gulf University, Bahrain.
Ann Trop Paediatr. 1997 Jun;17(2):147-54. doi: 10.1080/02724936.1997.11747878.
To determine lead exposure among children in Bahrain, a total of 280 shed deciduous whole teeth were collected from 269 children. Teeth were analyzed for lead concentrations using atomic absorption spectrophotometry with electrothermal atomization. Children were between 5 and 15 years old. The study period extended from July 1993 to April 1994. The study showed that the overall mean tooth-lead level was 4.3 micrograms/g dry weight with a range of 0.1-60.8 micrograms/g dry weight. The cumulative frequency distribution revealed that 35% of the teeth had a lead concentration of more than 4 micrograms/g dry weight. The tooth-lead concentrations differed according to the tooth type age. The child's sex, nationality, area of residence and socio-economic status had no impact on tooth-lead level. In conclusion, lead is present in toxic concentrations in 35% of the teeth of the children studied. Urgent measures are needed to eliminate lead from gasoline, paint and other sources in the environment.
为了确定巴林儿童的铅暴露情况，从269名儿童中总共收集了280颗脱落的乳牙。使用电热原子化原子吸收分光光度法分析牙齿中的铅浓度。儿童年龄在5至15岁之间。研究期从1993年7月持续到1994年4月。研究表明，牙齿铅含量的总体平均水平为4.3微克/克干重，范围为0.1至60.8微克/克干重。累积频率分布显示，35%的牙齿铅浓度超过4微克/克干重。牙齿铅浓度因牙齿类型和年龄而异。儿童的性别、国籍、居住地区和社会经济地位对牙齿铅水平没有影响。总之，在所研究儿童的35%的牙齿中，铅的浓度达到了有毒水平。需要采取紧急措施消除环境中汽油、油漆和其他来源的铅。
