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[目的]了解沧州市高碘水源的地理分布特征。[方法]依据历史资料,选取沧州市中东部63个乡镇,每个乡镇按东、南、西、北、中不同方位随机抽取5个自然村,采集水样、了解水源类型及水井深度等信息资料。[结果]本次调查共采集水样计315份,水碘中位数为359.72μg/L(6.76￣1457.50μg/L),浅井水和深井水的碘含量分布不同(u=2099,P<0.001),深井水碘含量与井深之间存在正相关关系(rs=0.414,P<0.001)。不同地貌特征和地层条件下的饮用水碘含量差异均有统计学意义(P<0.001)。[结论]建议在沧州市中东部地区同时供应含碘盐和不含碘盐,开展健康教育和实施改水措施。
[Objective] To understand the geographical distribution characteristics of high iodine water in Cangzhou. [Method] Based on the historical data, 63 villages and towns in the eastern and central regions of Cangzhou were selected. Each villages and towns randomly selected 5 natural villages in different orientations of East, South, West, North and Central China, collected water samples and obtained information such as water source type and well depth . [Result] A total of 315 water samples were collected and the median of water iodine was 359.72μg / L (6.76 ~ 1457.50μg / L). The distribution of iodine content in shallow and deep well water was different (u = 2099, P < 0.001). There was a positive correlation between well depth and iodine content in deep well water (rs = 0.414, P <0.001). There were significant differences in iodine content of drinking water under different landform features and formation conditions (P <0.001). [Conclusion] It is suggested that both iodized salt and iodine-free salt should be supplied in the middle and eastern part of Cangzhou, health education and water diversion measures should be carried out.