河南省西部地区地方性氟中毒流行广泛。据我们1980年调查偃师、新安、孟津三个县地方性氟中毒患者约计53.7万人。而调查饮水源1301个,饮水含氟量超过国家卫生标准1.0ppm 的只有16个,仅占1.23%。其中新安县地方性氟中毒者25.9万人,占全县总人口59%。其饮水含氟量全部在1.0ppm 以下。为了查清氟源及其进入人体途径,以便有针对性的采取 The endemic fluorosis in western Henan Province is widespread. According to our survey in 1980, 73.3 million people were suffering from endemic fluorosis in the three counties of Yanshi, Xin’an and Mengjin. However, there were only 130 drinking water sources surveyed, with only 16 drinking water containing more than 1.0ppm of national health standards, accounting for only 1.23%. Xin’an County, where endemic fluoride poisoning 259000 people, accounting for 59% of the total population of the county. The fluorine content of drinking water are all below 1.0ppm. In order to identify the source of fluoride and its access to the human body in order to be targeted to take