盐碘浓度下调后四川省内江市2013—2020年碘盐监测结果分析

Analysis of the monitoring results of iodized salt in Neijiang City, Sichuan Province from 2013 to 2020 after the reduction of salt iodine concentration

目的了解盐碘浓度下调后,2013—2020年四川省内江市居民户食用盐、盐库及销售点盐碘情况,为持续消除碘缺乏病危害提供依据。方法按照《四川省碘盐监测方案》、《四川省碘缺乏病监测方案》和《四川省重点人群碘缺乏病监测方案》2013—2020年在内江5个县(市、区)随机抽取一定数量居民户家中盐样,2013—2020年在东兴区开展盐库盐碘和碘盐销售点盐碘调查;从2013年开始,每奇数年开展儿童及其家庭就餐成员食盐摄入量调查。采用GB/T 132057仲裁法检测碘含量。结果 2013—2020年全市共调查居民户盐样14 500份,居民户碘盐覆盖率99.52%,碘盐合格率95.77%,合格碘盐食用率95.32%。个别县(市、区)部分年份居民户、重点人群合格碘盐食用率未达90%。监测盐库盐样均为合格碘盐,销售点碘盐覆盖率100%,调查居民户食盐摄入量中位数5.83 g。结论盐碘浓度下调后,内江市顺利实现新、旧碘盐标准的过渡。居民户、重点人群碘盐覆盖率、碘盐合格率、合格食用率均达到国家消除碘缺乏病标准,但在县级层面合格碘盐食用率存在不达标的情况,建议加强部门联动,实现监测预警与行业监管的有机结合,同时做好健康教育,确保群众能够食用到合格碘盐。

Objective After understanding the reduction of salt iodine concentration, the situation of edible salt, salt storehouses and salt iodine of sales points of residents in Neijiang City, Sichuan Province from 2013 to 2020,provides a basis for the continuous elimination of the harm of iodine deficiency diseases.Methods In accordance with the "Sichuan Province Iodine Salt Monitoring Program",the "Sichuan Province Iodine Deficiency Disease Monitoring Program" and the "Sichuan Province Key Population Iodine Deficiency Disease Monitoring Program",from 2013 to 2020,randomly selected salt samples from a certain number of households in five counties(cities, districts) in Neijiang, and conducted salt iodine surveys in salt storage and iodized salt sales points in Dongxing District from 2013 to 2020.Beginning in 2013,a survey of salt intake of children and their family members will be carried out every odd number of years.GB/T 132057 arbitration method was used to detect iodine content.Results From 2013 to 2020,a total of 14 500 household salt samples were investigated in the city.The household iodized salt coverage rate was 99.52%,the qualified rate of iodized salt was 95.77%,and the qualified iodized salt consumption rate was 95.32%.In some counties(cities, districts),the consumption rate of qualified iodized salt in households and key populations in some years has not reached 90%.The salt samples of the monitored salt store were all qualified iodized salt, the coverage rate of iodized salt at the sales point was 100%,and the median salt intake of the surveyed households was 5.83 g.Conclusions After the salt iodine concentration was lowered, Neijiang City successfully realized the transition between the new and old iodized salt standards.The coverage rate of iodized salt, the qualified rate of iodized salt, and the qualified consumption rate of residents and key populations have all reached the national standards for eliminating iodine deficiency disorders.However, the consumption rate of qualified iodized salt at the county level is not up to standard.It is recommended to strengthen departmental linkage to achieve monitoring the organic combination of early warning and industry supervision, while doing a good job of health education to ensure that the masses can eat qualified iodized salt.