安吉梅溪地氟病与地质地球化学环境分析

对浙江安吉梅溪姚村地氟病区的地质地球化学调查发现 ,岩、土、水中CaO、P、Zn、K、Na、Mg等元素严重缺乏 ,饮用水和土壤中 pH值分别为 6 2 2和 5 3,其中饮用水pH值低于国标下限值 6 5 ,人体较为敏感的氟元素出现奇高 (5 99mg/L)和特低 (0 11、0 0 3mg/L)两个极端。分析认为这种特殊的地质地球化学环境是导致地氟病的主要原因。据此 ,提出通过改水工程防治地氟病的对策措施 ,已经得到落实。

Endemic Fluorine disease and Its geological and geochemical environment at Yaodou village,Anji country,Zhejiang province

By doing investigation on geological and geochemical e nvironment of endemic Fluorine disease district at Yaodou village, Meixi town, A nji country,Zhejiang Province,it was found that the geochemistry environment o f rock, soil, water, was very unusual. The microelement includes CaO, P, Zn, K, Na, Mg were deficient seriously. Water and soil were strong acidic(pH 5.3 and 6 .22). Fluorine that is closely to human health appeared either very high( 5.99 m g/L) or specially low( 0.11, 0.03 mg/L). It was occured that such special geolo g ical and geochemical environment was the main reason of endemic Fluorine disease . The study result caused the government's great attention. At present the proje ct of changing distinct water had been finished already and ended the history o f drinking Fluorine spring from generation to generation.