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目的了解云南省腾冲县城乡居民食用碘盐覆盖情况及盐碘含量,分析影响因素及时发现问题并采取相应干预措施,保证居民食用合格碘盐,持续预防控制碘缺乏病。方法 2006—2011年每年抽取18个乡镇(山区10个,半山区6个,坝区2个)居民户盐样约288份。根据《云南省碘盐监测方案》的要求,按照国标(GB/T 13025.7-1999)中的国家碘离子检测标准,采用直接滴定法定量测定食用盐中碘含量。结果共抽检居民户食用盐1 800份,合格碘盐1 726份,不合格碘盐44份,非碘盐30份。碘盐覆盖率98.33%(1 770/1 800),合格碘盐食用率95.89%(1 726/1 800),碘盐合格率97.51%(1 726/1 770),非碘盐率1.67%(30/1 800)。山区碘盐使用率为95.22%,低于半山区和坝区。结论腾冲县仍有少量非碘盐在市场上销售,提示今后碘盐监督、监测的重点仍以山区为主;并需要进一步加大消除碘缺乏病的宣传教育力度。
Objective To understand the coverage of iodized salt and iodine content in urban and rural residents of Tengchong County in Yunnan Province, analyze the influencing factors and find out the problems in time, and take corresponding intervention measures to ensure the residents consume qualified iodized salt and continue to prevent and control iodine deficiency disorders. Methods From 2006 to 2011, about 288 salt samples were collected from 18 towns and villages (10 in mountainous area, 6 in mid-mountain area and 2 in dam area). According to the requirements of “Yunnan Province iodized salt monitoring program”, the iodine content in edible salt was quantitatively determined by direct titration according to the national iodine ion detection standard in the national standard (GB / T 13025.7-1999). Results A total of 1 800 household salt, 1 726 qualified iodized salt, 44 unqualified iodized salt and 30 non-iodized salt were collected. The iodized salt coverage rate was 98.33% (1 770/1 800), the qualified iodized salt rate was 95.89% (1 726/1 800), the iodized salt pass rate was 97.51% (1 726/1 770) and the non-iodized salt rate was 1.67% 30/1 800). The utilization rate of iodized salt in mountain area was 95.22%, lower than that of Mid-levels and dam areas. Conclusion Tengchong County still has a small amount of non-iodized salt on the market, suggesting that the future monitoring of iodized salt is still focused on the mountainous areas. Further efforts should be made to promote publicity and education to eliminate iodine deficiency disorders.