摘要
目的 :了解潮阳市地方性氟中毒的病情并探讨地方性氟中毒的关系 ,为制定科学的防治策略提供依据。方法 :用氟离子电极法分别测定生活饮用水、灌溉水、稻谷、茶叶、土壤中的氟含量 ,并对潮阳市 8～ 15岁该地出生的在校生进行氟斑牙患病情况进行调查。结果 :病区与非病区稻谷、土壤中氟含量无显著性差异 (P>0 .0 5 ) ,灌溉水氟含量有显著性差异 (P<0 .0 5 ) ;病区土壤氟含量与稻谷氟含量、稻谷氟含量与氟斑牙患病率呈正相关 ,相关系数 r值分别为0 .5 2 5、0 .818;茶叶的氟含量高达 30 .88mg/ l,灌溉水氟含量与土壤氟含量、土壤氟含量与氟斑牙患病率的相关性较小 ,相关系数 (r值 )分别为 - 0 .2 37、- 0 .332。结论 :潮阳市经改水降氟 ,氟斑牙呈下降趋势 ;除饮用水 (已改水降氟 )外 ,大米、土壤、灌溉水、茶叶等也是该地区的氟来源。
Objective To understand the relationship between endemic fluorosis and the origin of fluoride for supplying some strategic suggestion to control and prevent the endemic fluorosis in Chaoyang city, Guangdong province.Methods The fluoride contents in drinking water, irrigative water, rice, tea and soil were determined by fluoride ion selective electrode. Dental fluorosis conditions of 8~15 years old children were examined. Results Between fluorosis and non-fluorosis areas, the fluoride contents in rice and soil didn't show statistical difference (P>0.05), but the fluoride contents in irrigative water did (P<0.05). The fluoride contents in soil and rice has a positive correlation(r=0.525) as well as in those rice with the prevalence rate of dental fluorosis in the children aged 8～15( r=0.818). The fluoride content in tea was as high as 30.88mg/L. Contrarily, the relation of fluoride contents between irrigative water and soil, the relation of fluoride content in soil and dental fluorosis prevalence rate were less significant, those correlative coefficients were -0.237, -0.332 respectively. Conclusion The trend of dental fluorosis has been declined after safe water supply in Chaoyang. Rice, soil, irrigative water and tea were the other origin of the fluoride.
出处
《中国农村卫生事业管理》
2004年第3期44-46,共3页
Chinese Rural Health Service Administration
