2010年四川省碘盐监测

Surveillance of Iodized Salt in Sichuan,2010

目的监测2010年四川省居民户碘盐食用情况,确保居民食用合格碘盐,有效防治碘缺乏病。方法采用随机抽样监测和重点抽样监测,随机抽样监测在全省每县采用分层随机抽样法抽取288份或300份盐样;重点抽样监测在38个重点监测县每县抽取300份盐样。随机抽样监测样品主要采用《制盐工业通用试验方法碘离子的测定》GB/T13025.7-1999中仲裁法进行定量检测,重点抽样监测样品采用自制碘盐定性检测试剂进行检测。结果全省随机抽样监测应监测食盐52 488份,实际监测52 539份,其中合格碘盐51 284份,不合格碘盐955份,非碘盐300份,合格碘盐食用率97.9%,碘盐覆盖率99.6%,碘盐合格率98.3%;重点抽样监测应监测食盐11 400份,实际监测11 400份,其中非碘盐86份,碘盐覆盖率99.25%。结论 2010年四川省碘盐覆盖率、合格碘盐食用率和碘盐合格率均大于90%,碘盐指标达到消除碘缺乏病标准。

Objective To understand the consumption status of iodized salt among residents in Sichuan in 2010, so as to improve the quality of iodized salt and control iodine deficiency disorders effectively. Methods Random sampling as well as importance emphasis sampling were employed to analyze iodized salt consumption. Stratified random sampling was employed to detect the iodine content in the iodized salt at county level. The iodine concentration of salt collected with random sampling were detected by method of arbitrates with criteria of GB/T13025.7 - 1999 ; self - made iodized qualitative detection reagents were used in importance samplingmonitoring. Results Totally 52 539 salt samples were monitored with random sampling monitoring, among which there were 51, 284 qualified iodized-salt, 955 non-qualified and 300 non -iodized salt samples.The coverage rate of iodized salt in residents was 99.6%, the coverage rate of qualified iodized - salt was 97.9% and the qualified rate of iodized- salt was 98.3%. Totally 11400 salt samples were monitored withimportance sampling, and the coverage rate of iodized salt were 99.25 %. Conclusions The coverage rate of i- odized salt, the coverage rate of qualified iodized - salt and the qualified rate of iodized - salt all exceeded90% in Sichuan in 2010, indicating that iodine salt qualified the standard for eliminating iodine deficiency disorders.