Objective:To determine over-limit status of sodium nitrite in cooked meat products in Hunan Province,and to provide scientific evidence for making health supervision.Methods:In accordance with the national standards for sampling and testing,data were analyzed by classical and spatial statistic methods.Results:The total over-limit rate of sodium nitrite was 5.5％ in 731 samples.The relative higher sodium nitrite over-limit rates were Xiangxi Tujia and Miao autonomous prefecture and Zhangjiajie.October and February were the main months in nitrite over-limit.Five regions with over-limit of sodium nitrite in cooked meat products were detected in Hunan.Conclusion:With obvious space-time clustering,over-limit of sodium nitrite in cooked meat products is a common problem particularly in northwest Hunan and Zhuzhou City.Supervision in October should be further strengthened in above-mentioned areas to guarantee the consumers health.%目的:了解湖南省熟肉制品中亚硝酸钠的超标状况,为卫生监管提供科学依据.方法:按照国家标准进行采样和检测,采用经典统计方法与空间统计方法相结合进行数据分析.结果:731份熟肉制品的总超标率为5.5％;湖南亚硝酸钠超标率排在前二位的地市为湘西土家族苗族自治州和张家界市;熟肉制品中超标数聚集的时间是10月和2月;熟肉制品超标数地市共聚集成5类.结论:亚磷酸钠在熟肉制晶中超标现象普遍存在,有明显的时空聚集性,以湖南西北部以及株洲等地最为严重,应加强对重点地区亚硝酸钠的监管,保护消费者的健康.
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