山东省地方性氟中毒现状抽样调查

ttttt  目的  ttttt了解全省地方性氟中毒病情现状.ttttt  方法  ttttt在13个市采用整群分层随机抽样的方法选择调查点.用氟离子电极法测定水氟, 采用Dean氏法进行儿童氟斑牙诊断.ttttt  结果  ttttt共调查了31个县337个病村, 水氟含量 > 1.00 mg/L的病村占54.41%, 8~12岁儿童氟斑牙总患病率为41.39%(25.05%~71.88%), 斑釉指数为0.95(0.55~2.01).在未改水的病村中, 有69.77%的病村水氟含量 > 1.00 mg/L(最大值为6.62 mg/L), 儿童氟斑牙患病率平均为41.84%(0.76%~94.17%).在改水降氟工程运转基本正常的病村中, 有37.04%的病村水氟含量 > 1.00 mg/L(最大值为5.57 mg/L), 儿童氟斑牙患病率平均为32.71%(0.93%~98.21%).在改水工程停用报废的病村中, 有72.84%的病村水氟含量 > 1.00 mg/L(最大值为8.32 mg/L), 儿童氟斑牙患病率平均为57.18%(3.92%~100.00%).ttttt  结论  ttttt山东省地方性氟中毒病情仍然十分严重, 须进一步落实防制措施.

Spot- checking on present states of endemic fluorosis in Shandong province

ttttt  Objective  tttttTo understand the presentstatus of endemic fluorosis in Shandong pr ovince.ttttt  Methods  tttttThe investig ated sites were selected by cluster sampling from 13 cities.To deter mine the contentof fluoride in drinking water by Fion selective electrode and diagnose dental fluorosis of children by Dean method.ttttt  Results  tttttThe investigation covered 337 fluorosis villages of 31 counties belong to 13 regions.The fluorosis villages thatfluoride contentwas over 1.00 mg/L accounted for 54.41%, and the to tal rate of dental fluorosis of children 8 to 12 years old was 41.39%(25.05%~71.88%).The indexof dental fluorosis was 0.95(0.55~2.01).Among the fluo rosis villages thathad no improved water, the villages thatfluoride contentwas over 1.00mg/L accounted for 69.77%(max:6.62mg/L); the rate of dental fluorosis of children was 41.84%(0.76%~94.17%).Among the fluorosis villages thatwater-impr oving and defluoridation projects behaved normally, the villages thatfluoride contentwas over 1.00 mg/L accounted for 37.04%(max:5.57 mg/L), the rate of dental fluorosis of children was 32.71%(0.93%~98.21%).Among the fluorosis villages thatwater-improving and defluo ridation projects had stopped using and abandoned, the villag es thatfluoride contentwas over 1.00 mg/L accounted for 72.84%(max:8.32 mg/L), the rate of dental fluo rosis of children was 57.18%(3.92%~100.00%).ttttt  Conclusions   tttttThe state of an illness fo rendemic fluorosis is still quite serious in Shandong province.So preventing and controlling measure forendemic fluorosis mustbe carried out.