深圳市市售海产品中砷、镉、铅含量分析及风险评价

发布时间：2018-03-31 19:23

本文选题：毒性金属　切入点：海产品　出处：《环境与职业医学》2017年01期

【摘要】：[目的]了解深圳市市售海产品中砷(As)、镉(Cd)、铅(Pb)的含量,为食品安全监管提供依据。[方法]分别在深圳市蛇口市场、福田市场、布吉市场采集162份海产品,采用电感耦合等离子体质谱仪ICP-MS测定As、Cd、Pb含量,根据GB 2762—2012《食品中污染物限量》并运用危害商数(target hazard quotients,THQs)评价食用海产品对人体健康的潜在风险。[结果]As在双壳贝类中的质量分数(下称"含量")范围为(0.62~2.99)mg/kg,在鱼类中的含量范围为(0.27~2.41)mg/kg;Cd在双壳贝类中的含量范围为(0.09~2.30)mg/kg,在鱼类中的含量范围为(0.005~0.014)mg/kg;Pb在双壳贝类中的含量范围为(0.057~0.62)mg/kg,在鱼类中的含量范围为(0.02~0.05)mg/kg。[结论]Cd和Pb在双壳贝类中含量高于鱼类,比目鱼和红鳍笛鲷中As含量与部分海湾扇贝中Cd含量超过了GB 2762—2012《食品中污染物限量》要求,但危害商数评价显示:目前市场上的海产品相对安全,对人体健康危害的潜在风险较小。
[Abstract]:[objective] to study the contents of arsenic, cadmium, cadmium and lead in seafood in Shenzhen City, and to provide basis for food safety supervision.[methods] 162 samples of seafood were collected from Shekou market, Futian market and Buji market of Shenzhen City, respectively. The content of aspartate CD _ (2) Pb was determined by inductively coupled plasma mass spectrometer (ICP-MS).According to GB2762-2012, the potential risk of eating seafood to human health was evaluated by using target hazard quotients THQs.The range is 0. 057 ~ 0. 62 mg 路kg ~ (-1), and the range of fish content is 0. 022 ~ 0. 05 mg / kg 路kg ~ (-1).[conclusion] the contents of CD and Pb in bivalve shellfish were higher than those in fish, and the contents of as in flounder and red fin snapper and CD in some bay scallop exceeded the requirement of GB2762-2012.However, the evaluation of hazard quotient shows that seafood in the market is relatively safe at present, and the potential risk to human health is relatively small.
【作者单位】：深圳大学物理与能源学院;
【基金】：国家自然科学基金项目(编号:11375117)
【分类号】：R155.5

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