当阳市居民饮用水碘含量的调查分析

Investigation on Iodine Level of Drinking Water in Dangyang

摘要:
目的调查当阳市居民饮用水碘含量, 为制定防治策略提供科学依据。
方法采集集中式供水和分散式供水水样, 用砷铈催化分光光度法检测水碘。
结果 297份水样的碘含量在0~143 μg/L之间, 平均为21.9 μg/L, 中位数9.3 μg/L, 水碘含量≥100 μg/L 8份。
结论按碘缺乏病病区划分标准, 当阳市居民水源一半以上为缺碘地区。但也有少量水源中碘含量较高, 接近高碘地区, 应加强监测。

Abstract:
Objectives To investigate iodine level of drinking water in Dangyang, to provide scientific basis for prevention and control strategies.
Methods Drinking water samples were collected from centralized and decentralized water supplies, and the level of iodine in drinking water was determined by arsenic-cerium catalytic method.
Results The range of iodine level was 0~143 μg/L, the mean value was 21.9 μg/L, and the median value was 9.3 μg/L in 297 water samples. The iodine content in 8 water samples was more than 100 μg/L.
Conclusions According to the standard delimitation for the endemic area of iodine deficiency disorder and iodine deficiency, the water source for more than half of residents in Dangyang city was deficient in iodine.On the other hand, the iodine content in a small number of water samples was high, which was closed to a high iodine area.Monitoring the iodine level in water source should be strengthened in these areas.