2008年日照市水碘分布现状调查

目的]调查日照市居民饮用水中碘的含量，为碘缺乏病的防治提供基础资料与科学依据。方法]在所辖区域范围内，以自然村（居委会）为单位进行水样采集．利用硫酸铈催化分光光度法对水样进行碘含量分析测定。结果]各乡镇的水碘中位数均小于10μg／L；各区县间水碘频数分布差异有统计学意义（P〈0．01）；沿海乡镇与内陆乡镇水碘中位数分别为6．6μg／L与3．8μg／L，其频数分布差异有统计学意义。结论]日照市属碘缺乏地区，日照市饮用水水碘的分布不均衡。

Investigation on Iodine Distribution in Drinking Water in Rizhao City in 2008

Objective]To investigate the content of iodine in drinking water in Rizhao city. provide basic data and scientific basis for the control and prevention of iodine deficiency disorder. Methods]Water samples were collected from the villages （neighborhood committee） in Rizhao area,the content of iodine in drinking water was analyzed and detcrmined with cerous sulfate catalysis spectrophotometric method. Results]The median of iodine in drinking water of each town was less than 10 μg/L. There was a difference of the frequency distribution of iodine in drinking water in different towns and regions. The median of iodine in drinking water of coastal and inland towns was 6.6 μg/L and 3.8μg/L respectively, there was a difference of the frequency distribution between them （ P 〈0.01）. Conclusion]Rizhao city was iodine deficiency area,iodine in drinking water is not well distributed.