摘要目的:调查江苏省生活饮用水碘含量分布情况。方法:2017年，以乡镇（街道，以下简称乡镇）为单位在江苏省开展居民饮用水碘含量调查。对调查结果中水碘中位数> 10 μg/L的乡镇以行政村（居委会，以下简称行政村）为单位进一步开展居民饮用水碘含量调查。划定标准：水碘含量中位数< 40 μg/L为碘缺乏地区，40~100 μg/L为适碘地区，> 100 μg/L为高碘地区。结果:乡镇级水碘调查，共调查13个设区市101个县（市、区）的1 285个乡镇，乡镇水碘中位数为7.28 μg/L。其中，水碘中位数< 10 μg/L的乡镇有875个，占68.09%；10 ~ < 40 μg/L的乡镇有315个，占24.51%；40 ~ 100 μg/L的乡镇有56个，占4.36%；> 100 μg/L的乡镇有39个，占3.04%。行政村级水碘调查，共调查6个设区市410个乡镇的5 864个行政村。其中，水碘中位数< 10 μg/L的行政村有769个，占13.11%；10 ~ < 40 μg/L的行政村有3 558个，占60.68%；40 ~ 100 μg/L的行政村有613个，占10.45%；> 100 μg/L的行政村有924个，占15.76%。结论:按水碘划分，江苏省呈现碘缺乏、适碘、高碘地区并存现象，主要以碘缺乏地区为主。

abstractsObjective:To investigate the iodine content distribution of drinking water in Jiangsu Province.Methods:In 2017, the iodine content in drinking water of residents in townships (streets, hereinafter referred to as townships) of Jiangsu Province was investigated. Administrative villages (neighborhood committees, hereinafter referred to as administrative villages) of Jiangsu Province were selected as units for the investigation of townships with the median water iodine greater than 10 μg/L. Delimitation criteria: the median iodine content of water < 40 μg/L was iodine deficiency area, 40-100 μg/L was suitable iodine area, and > 100 μg/L was high iodine area.Results:A total of 1 285 townships were surveyed in 101 counties (cities, districts) in 13 cities, and the median water iodine in townships was 7.28 μg/L. Among them, there were 875 townships with median water iodine < 10 μg/L, accounting for 68.09%; 315 townships 10-< 40 μg/L, accounting for 24.51%; 56 townships 40-100 μg/L, accounting for 4.36%; 39 townships > 100 μg/L, accounting for 3.04%. The water iodine survey at the administrative village level was conducted in 5 864 administrative villages in 410 townships in 6 cities. Among them, 769 administrative villages with median water iodine < 10 μg/L, accounting for 13.11%; 3 558 administrative villages 10 - < 40 μg/L, accounting for 60.68%; 613 administrative villages 40 - 100 μg/L, accounting for 10.45%; and 924 administrative villages > 100 μg/L, accounting for 15.76%.Conclusion:According to the water iodine, there are iodine deficiency, suitable iodine and high iodine areas in Jiangsu Province, mainly in iodine deficiency areas.