【摘要】 目的了解武汉市居民饮用水碘、砷、氟含量,为有效预防控制碘缺乏病、砷中毒、氟中毒提供科学依据。方法采集所有集中式供水点水源水和末梢水水样各1份;自来水未覆盖的地方,以行政村为单位,按照东、南、西、北、中的方位采集作为饮用水的各类型水源至少1份。水碘检测采用砷铈催化分光光度法,水砷检测采用原子荧光法,水氟检测采用离子选择电极法和离子色谱法。结果全市仅有5个区21个乡(镇、街道)的91个行政村还有分散式供水,占全部行政村的2.85%,其余全部为集中式供水。共采集水样344份,水碘含量为0.00-144.12μg/L,中位数为7.20μg/L,<10μg/L的水样197份,占57.27%;水砷含量为0.0005-0.019 mg/L,中位数为0.0005mg/L;水氟含量为0.06-0.81 mg/L,中位数为0.22 mg/L。结论全市未发现高水碘、高水砷和高水氟分布,大部分地区仍然为缺碘地区,应继续实施以食盐加碘为主的综合防控策略,持续消除碘缺乏危害。更多还原

【Abstract】 Objective To find out iodine,arsenic and fluorine content in drinking water of Wuhan City, and to provide a scientific basis for prevention of iodine deficiency disorders, arseniasis and fluorosis. Methods Both one waterplant source water sample and one ending tap water sample were collected from every centralized water supply point. For the areas with decentralized water supply, an administrative village was taken as a unit, five different source drinking water samples were randomly collected according to directions( east, west, south, north and center) in the villages. Water iodine content was determined with the arsenic cerium catalytic spectrophotometry, arsenic content was determined with atomic fluorescence spectrometry, and fluorine content was determined with ion selective electrode and ion chromatography. Results The decentralized water supply existed in 91 administrative villages of 21 towns, 5 districts, which accounted for 2.85% of all the villages in the city. The range of water iodine content was 0.00 ~ 144.12 μg/L, and median was 7.20 μg/L in the total of 344 drinking water samples of the city. There were197 water samples with iodine content <10 μg/L, accounting for 57.27%. The range of water arsenic content was 0.0005 ~ 0.019mg/L, median was 0.0005 mg/L. The range of water fluorine content was 0.06 ~ 0.81 mg/L, median was 0.22 mg/L.Conclusions There is no iodine, arsenic and fluorine excessive area in Wuhan. Most regions are iodine deficient. The implementation of comprehensive control strategy taking salt iodization as the principal thing should be continued to sustain elimination of iodine deficiency.更多还原