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目的为全面掌握上街区碘盐质量和合格碘盐覆盖率及使用状况,及时发现问题、并采取相应的干预措施。方法按东、西、南、北、中不同方位抽取5个抽样单位,每个镇或办事处随机抽取4个行政村(居委会)。每个村(居委会)随机抽取15户居民盐样,检测盐碘含量。随机在居民户采集食盐后,即在现场进行半定量检测(若在半定量检测中发现非碘盐,应询问非碘盐的来源渠道)随后将盐样送到实验室定量检测,按照GB/T13025.7-1999直接滴定法(川盐及其它强化食用盐采用仲裁法)测定盐中碘含量。结果 2008-2014年每年均监测300份,居民户碘盐合格率均在93.00%以上,碘盐覆盖率:2008、2011、2012、2013年均为99.67%、2009、2010、2014年均为100.00%,非碘盐率分别为:0.33%(2008、2011、2012、2013年)、0(2009、2010、2014年);合格碘盐食用率均在90.00%以上。碘盐中位数分别为:31.95 mg/kg、29.10 mg/kg、32.08 mg/kg、31.60 mg/kg、28.91 mg/kg、26.85 mg/kg、26.04 mg/kg。结论上街区居民户碘盐各项指标均位于国家控制指标以内,并且保持较为稳定的水平,各年度波动范围不大,非碘盐4年度有检出,不合格碘盐每年都有,这些成为影响碘缺乏病防治效果的主要因素,因此,应加大监测、监督力度,普及健康教育知识,抵制非碘盐冲击市场。
Objective To fully grasp the quality of iodized salt in the streets and the coverage and use of qualified iodized salt, find out the problems in time and take corresponding intervention measures. Methods Five sampling units were selected according to different orientations of East, West, South, North and North. Each town or office randomly selected 4 administrative villages (neighborhood committees). Each village (neighborhood) randomly selected 15 households salt samples, salt iodine detection. Random collection of salt in the residents, that is, semi-quantitative detection in the field (if the discovery of non-iodized salt in the semi-quantitative test should be asked sources of non-iodized salt) Then salt samples sent to the laboratory quantitative detection, in accordance with GB / T13025.7-1999 Direct titration (Sichuan salt and other fortified edible salt by arbitration method) Determination of iodine content in salt. Results From 2008 to 2014, the number of iodized salt was above 93.00%. The iodized salt coverage rate was 99.67% in 2008, 2011, 2012 and 2013, and 100.00 in 2009, 2010 and 2014 respectively %, Non-iodized salt rates were: 0.33% (2008, 2011, 2012, 2013), 0 (2009, 2010, 2014); qualified iodized salt consumption rates above 90.00%. The median of iodized salt was 31.95 mg / kg, 29.10 mg / kg, 32.08 mg / kg, 31.60 mg / kg, 28.91 mg / kg, 26.85 mg / kg and 26.04 mg / kg, respectively. Conclusion The indicators of iodized salt in residential area of Shangjie are all within the state control index and maintained at a relatively stable level. The fluctuating range of each year is not large, non-iodized salt is detected in 4 years, and unqualified iodized salt is in each year. These are Therefore, monitoring and supervision should be intensified to popularize the knowledge of health education and resist the impact of non-iodized salt on the market.