鄂尔多斯市2006年饮茶型氟中毒调查分析

Analyse on fluorosis of drinking tea in Eerduosi in 2006

目的了解鄂尔多斯市饮茶型氟中毒的流行情况。方法按农区、牧区、半农半牧区、镇区开展调查工作,氟含量测定采用国家标准(氟离子选择电极法)检测,氟斑牙调查采用国家氟斑牙诊断标准(Dean)。结果5旗水氟含量算术均值为0.78mg/L,茶水氟含量算术均值为2.03mg/L,茶水氟含量明显高于饮水氟含量;氟斑牙患病率:成人49.7%,儿童38.2%;尿氟大于1.5mg/L的比例,成人占63.35%,儿童占47.30%;杭锦旗氟中毒流行情况较为严重。结论鄂尔多斯市为饮茶型氟中毒地区。(上接13页)4讨论从调查结果来看,我市五旗区饮茶型氟中毒调查地区的水氟含量算术均值为0.78mg/L,茶水氟含量算术均值为2.03mg/L,茶水的氟含量明显高于饮水的氟含量,说明我市的氟中毒是由于饮用高氟茶造成的。且该调查地区的成人氟斑牙患病率达到了49.7%,儿童氟斑牙患病率为38.20%,尿氟大于1.5mg/L的比例,成人占63.35%,儿童占47.30%,这些结果又进一步证明了调查地区存在着饮茶型氟中毒,同时也表明饮茶对当地居民身体健康有了严重的威胁。由本次的调查结果不难看出,我市的饮茶型氟中毒流行状况不容乐观,鉴于此,我们应该采取一些有效的措施来预防和控制饮茶型氟中毒,如(1)改变生活习惯,(2)生产含氟量低的砖茶,(3)加强宣传力度,提高自我保护意识,等等。表5儿童氟斑牙调查结果地区调查人数正常可疑极轻轻度中度重度患病率%杭锦旗400179131512811055.3鄂旗4002408541304040.0鄂前旗400333392800016.8乌审旗4003115023106022.3伊旗40017411888191056.5合计200012374232318722038.

Objective To understanding fluorine of drinking tea distributed situation in Eerduosi. Methods According to agricultural area, pastoral area, haLf agricultural half pastoral area, township development investigation work. The fluorine content was determined by the fluoride selective ion electrode. Dental fluorosis was examined with Dean＇ s index. Results The mean of fluorosis content in drinking water was 0. 78mg/L and in drinking tea was 2. 03mg/L, the fluorosis content in drinking tea was higher than in drinking water. The prevalence rate of dental fluorosis of the adult was 49. 7% and the children was 38.2%. There were 63. 35% the urinary fluorosis content of adults and 47.30% children beyond 1.5mg/L The fluorosis popular condition extremely are still stem in Hangiinqi. Conclusion Eerduosi is area of fluorosis of drinking tea.