摘要
[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 explore the.geographic distribution of water source with excessive iodine in Cangzhou City. [ Methods ] Based on the historical data, 63 small towns were selected to investigate water iodine content in the central and east area of Cangzhou City. Five villages located at east, south, west, north and center area of each selected town were chosen for collecting water samples. The data on the type of water source and the depth of wells were recorded, iodine content in drinking water sample from each village was monitored. [ Result ] A total of 315 water samples were monitored and the median of water iodine concentration was 359.72μg/L（ 6.76-1457.50μg/L）. The distribution of iodine content was different between shallow well water and deep phreatic water （ u = 2 099, P 〈 0.001 ）. Positive correlation was observed between the well depth and the iodine content of water in deep phreatic wells（rs= 0.414, P 〈 0.001 ）. The iodine content in water was also different between two different terrain features and two different geologic strata. [ Conclusion ] Both iodized salt and non-iodized ordinary salt should be supplied in the central and east area of Cangzhou City. The measures of improving the iodine content of water are also important in these areas.
出处
《环境与职业医学》
CAS
北大核心
2009年第2期207-209,共3页
Journal of Environmental and Occupational Medicine
基金
河北省国土资源厅资助项目(编号:200040007-3-9)
关键词
高碘
地理分布
调查
水源
iodine excess
geographic distribution
investigation
water source
