A Research On The Affects To Human Body And Preventive Measures Of Drinking Water Fluorine In The Fluorine Disease District Of Meizhou City

A census has been carried onto the water fluorine content in Meizhou city in 1984, the result finally demonstrated, except that the Jiaoling County has not discovered the super mark of the drinking water fluorine content, 30 towns, 57 villages, the drinking water fluorine content of 53812 people in the other 7 counties (city, area) has surpassed 1mg/ L, the fluorine spot tooth prevalence rate has reached 56.99%.In the past 20 years, the crowd of the fluorine disease District has carried on various forms of measures to decline the water fluorine in succession. This text makes an investigation on drinking water fluorine content of fluorine disease District in Meizhou, the local birth children' fluorine spot tooth and water improvement projects, understands thoroughly the effect of changing the water to decline the fluorine, analyzes the existent problem and finds out correspondent counterplans, and evaluates the existing prevention measures.A main inquisition of drinking water fluorine content in fluorine disease District has been carried out. Investigate on the fluorine spot tooth of the local children graded from 1 to 6 in the fluoride disease District and water improvement projects;The investigation shows the fluorine content of drinking water in the fluorine disease District. Analyzes the primary school students' rate of fluorine spot tooth before and after the water improvement in the fluorine disease District;the disease area quantity variety before and after the water improvement in Meizhou city;the relation between the water improvement and the rate of fluorine spot tooth in the fluorine disease District of Meizhou,shows the effect of the water improvement. Carries on the evaluation on the current prevention measures (the methods of changing thewater to decline the fluorine).The investigation results demonstrated that the rate of fluorine spot tooth in the fluorine disease District( 28.43 percent ) has remarkably decreased compared with that(56. 99 percent) before the water improvement, the qualification rate of fluoride content of drinking water has reached 83.33 percent, the normal running rate of water improvement projects is 68. 42 percent (39\57), the number of fluorine disease District has dropped to 29 from 37, the number of the fluorosis patients has been down to 25112. The investigation also discovered that, the fluorine content of Tangkeng fluorosis region in Fengshun County is not high, but because the vegetables and other crops irrigated by the high fluorine water, the content of food fluorine is high, the rate of fluorine spot tooth is high.From the investigation result, the effect of water improvement is remarkable, but some suffering regions paid no attention to the management and diary maintenance of water supply but water source, resulting in water improvement projects' being damaged, in addition to insufficient water and the people in the fluorosis region having drunk high fluoride water alternately, resulting in the people in the region not having got rid of fluorosis up till now. To the waterworks set up lately, suggest choosing the water source carefully; making good use of the budget of water, drawing up the solid viable plan; strengthening and perfecting the running of water improvement projects; strengthening the hygienic propaganda and healthy education. To strengthen the monitor, establish the city, the county level fluorine disease condition test point, observe the change of the fluctuation, water fluorine continually, especially the implementation of the fluorine measure.