2010年青海省碘盐监测结果分析

Data analysis of iodine level in iodized salt from monitoring sites in Qinghai province in 2010

目的分析青海省碘盐覆盖情况和质量，为碘缺乏病防治工作提供理论依据。方法2010年，按照《全国碘缺乏病监测方案（试行）》中的抽样和检测方法，在随机抽样中选择37个县（市、区），在重点抽样中按20％的比例选择6个县（市），对上述县（市、区）进行碘盐监测。随机抽样监测采用直接滴定法（GB／T13025．7—1999）定量测定盐碘；重点抽样监测采用半定量法检测盐碘。结果全省共检测居民户食用盐样10999份，其中合格碘盐10525份，不合格碘盐269份，非碘盐205份，碘盐覆盖率为98．14％（10794／10999），碘盐合格率为97．51％（10525／10794），合格碘盐食用率为95．69％（10525／10999），非碘盐率为1．86％（205／10999）。重点抽样监测中的6个县（市）共检测1800份居民户盐样，其中碘盐1712份，非碘盐88份，碘盐覆盖率为95．11％（1712／1800），非碘盐率为4．89％（88／1800），格尔木市、乌兰县、久治县非碘盐率分别为10．00％（30／300）、6．33％（19／300）、5．33％（16／300）。结论青海省碘缺乏病防治工作取得一些成效，但还存在一些问题，部分地区要建立健全盐政执法机构，完善碘盐销售网点，健全碘盐管理网络，强化健康教育等措施。

Objective To analyze coverage rate and quality of edible salt in Qinghai province, and to provided scientific basis for the prevention of iodine deficiency disorders. Methods According to the sampling and detection methods in the ＂National Iodine Deficiency Disorders Monitoring Program（Trial）＂, 37 counties （cities, districts） were randomly selected in 2010. Twenty percent of the 37 counties （cities, districts）, that was 6 counties （cities） were selected as key sites for monitoring of iodized salt. Quantitative determination of salt iodine was done by direct titration method（GB/T 13025.7-1999） in random monitoring, and semi-quantitative assay was used to monitor salt iodine in key sampling. Results A total of 10 999 edible salt samples were tested. Among them, 10 525 were qualified iodized salt, 269 unqualified iodized salt, and 205 non-iodized salt. The coverage rate of iodized salt was 98.14% （10 794/10 999）, the rate of qualified iodized salt was 97.51% （10 525/10 794）, the rate of edible qualified iodized salt was 95.69%（10 525/10 999）, and the rate of non-iodized salt was 1.86%（205/10 999）. In the 6 key monitoring counties, salt samples of 1800 were tested. Among them, 1712 were qualified iodized salt, 88 non-iodized sah, and the coverage rate of iodized salt was 95.11%（1712/1800）, and the rate of non-iodized salt was 4.89%（88/1800）. The rates of non-iodized salt in Geermu city, Wulan county, and Jiuzhi county were 10.00% （30/300）, 6.33%（19/300）, 5.33%（16/300）, respectively. Conclusions Despite remarkable progress has been made in control of iodine deficiency disorders in Qinghai province, there are still some problems in some areas. We should establish law enforcement agencies of iodized salt and perfect sales network, perfect iodized salt network management, and strengthening health education.