濮阳市高水碘自然村分布情况调查

目的掌握濮阳市高水碘自然村分布情况,实施科学补碘。方法以自然村为基本单位,对分散供水村,每村按照东南西北中5个方位各采2份水样;当水源数量少于10个时,采集全部水源水样;如遇集中供水,仅采1份管网末梢水样,采用适合缺碘及高碘地区的水碘检测方法测定每个村的饮水碘含量,参照《水源性高碘地区和地方性高碘甲状腺肿病区的划定》标准,确定高水碘自然村。结果检测水样2570份,水碘中位数为193.2μg/L;高水碘自然村299个,占73.6%;新发现高碘乡1个,共有8个高碘乡(镇);水碘含量与井深之间呈负相关(r=-0.055,P=0.005)。结论濮阳市台前县高水碘自然村分布广泛,8个乡(镇)属于高碘地区,建议以自然村为单位划定高碘地区,落实科学补碘。

Investigation the Distribution of the High Wa terlodine of Villages in Puyang City

OBJECTIVE To investigate the distribution of the high water iodine of villages in Puyang and implement the scientific methods to add iodine. METHODS Village was as the basic unit. In every village, which was decentralized water supply, in accordance with the East, the South, the West, the North and the Middle, each collected two water samples in the 5 position. When the waters were less than 10, collected all. Case of the centralized water supply, used only a pipe network peripheral water samples. Iodine concentration was determined by As3＋-Ce4＋ catalytic spectrophotometry method. Reference to the standard of ＂the delimitation of the water-borne iodine area and endemic the periodate goiter Ward＂ , determined the high water iodine villages. RESULTS Out of 2 570 samples, the median was 193.2μg/L, 229（73.6%） villages were high water iodine. New found 1 periodate Township, there were 8 periodate townships （towns）. The negative correlation was showed between the water and the depth （r=-0.055, P=0.005）. CONCLUSIONS High water iodine villages were widely distributed in Taiqian County, Puyang City. 8 townships（towns）belonged to the iodine areas. Suggested that demarcation of iodine area using village as unit, implement the scientific methods to add iodine.