深圳市市售食品中镉污染状况调查
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(深圳市疾病预防控制中心,广东 深圳 518055)

作者简介:

罗贤如 女 副主任医师 研究方向为营养与食品卫生E-mail:346625199@qq.com

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基金项目:

国家自然科学基金项目(81370080);广东省医学科学技术研究基金项目(A2017265)


Investigation on cadmium contamination in foods sold in Shenzhen
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(Shenzhen Center for Disease Control and Prevention, Guangdong Shenzhen 518055, China)

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    摘要:

    目的 了解深圳市市售食品中镉污染状况,为采取有针对性的控制措施提供科学依据。方法 采取分层随机抽样方法,采集2017年深圳市市售水产品、蔬菜及食用菌、畜肉类等19类2 410份食品样品,用电感耦合等离子体-质谱(ICP-MS)法检测食品中镉含量,检测结果按GB 2762—2017《食品安全国家标准 食品中污染物限量》及NY 659—2003《茶叶中铬、镉、汞、砷及氟化物限量》进行评价。结果 2 410份样品中镉检出率为48.7%(1 174/2 410),超标率为7.9%(190/2 410)。水产品中镉污染最严重,超标率为24.0%(187/780);其中双壳类镉含量最高,中位数含量为0.340 mg/kg,超标率为34.1%(184/540)。水果超标率为1.3%(1/80),蔬菜及菌类超标率为0.7%(2/270)。不同来源样品超标率差异有统计学意义(P<0.05)。结论 深圳市市售水产品、水果、蔬菜及菌类中存在镉含量超标现象,尤其水产品中镉污染严重,建议相关部门采取有效措施,加强监管力度,保障食品安全。

    Abstract:

    Objective To understand the situation of cadmium contamination in foods sold in Shenzhen, and then provide scientific basis for taking pertinent control measures. Methods Totally 2 410 food samples which included aquatic foods, vegetables and fungus, meat and its products, etc.were collected using stratified random sampling in 2017.The contents of cadmium were detected by inductively coupled plasma-mass spectrometry (ICP-MS) and evaluated by the Food Safety National Standards for Pollutant Limits(GB 2762-2017)and the Standards Limites of Cr, Cd, Hg, As and F in Tea (NY 659-2003). Results The detection rate of cadmium was 48.7%(1 174/2 410),and the over limit rate was 7.9%(190/2 410). Among these samples, aquatic foods were the most seriously polluted and the over limit rate reached 24.0%(187/780), and the cadmium content in shellfish was significantly higher than that in other aquatic foods, with the median content of 0.340 mg/kg and the over limit rate of 34.1%(184/540). The descending order of over limit rate was fruit(1.3%,1/80), vegetables and fungus(0.7%,2/270).The differences of the over limit rate from different sources were statistically significant(P<0.05). Conclusion There were cadmium contamination in foods sold in Shenzhen and aquatic foods were the most seriously polluted, which may provide a reference for making polices and taking effective measures for supervision.

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罗贤如,张锦周,王舟,杨淋清,黄海燕,黄海雄,张亮.深圳市市售食品中镉污染状况调查[J].中国食品卫生杂志,2019,31(4):375-378.

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  • 收稿日期:2019-06-19
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  • 在线发布日期: 2019-09-16
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