Objective   To understand the present states of prevention and control for endemic fluorosis.

  Methods   According to research standard of the present states prevention and control for endemic fluorosis.

  Results   In whole province, 5 934 water-improving and defluoridation projects were built.The projects were mainly low fluoride wells.There were 4159 projects that behaved normally, accounting for 70.09%;26 projects behaved abnormally, accounting for 0.44%;and 1749 projects stopped using and abandoned.accounting for 29.47%.There were 7 880 fluorosis villages have improved water and lowered fluoride, accounting for 67.60%;There were 3 776 fluorosis villages had no improved water and lowered fluoride, accounting for 32.40%.Among the water-improving villages 2110 villages have stopped using and abandoned, accounting for 26.46%.The main reasons of the stopping and abandoning were that administration was failure, quality of projects was no good, pipe line was destroyed and water fluoride concentration was overstandard.There were 5 689 villages used, accounting for 73.54%;in which 4 050 villages have water fluoride concentation1.00mg/L, accounting for 51% of water-improving villages; accounting for 35% of total fluorosis villages.The population being benefited really was over 324 ten thousands, accounting for 1/3 of the total population in the fluorosis region.

  Conclusion   Now there were still over 7 600 villages and 655 ten thousands people that was passing through endangerment of endemic fluorosis, and the preventive situation for endemic fluorosis control was still very severe in Shandong.So preventive working for endemic fluorosis control must be strengthened.