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Evaluation of possible health risks of heavy metals by consumption of foodstuffs available in the central market of Rajshahi City, Bangladesh

机译：通过孟加拉国拉杰沙希市中央市场上食用的食物评估重金属可能的健康风险

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摘要

Considering the human health risk due to the consumption of foodstuffs, the concentrations of heavy metals (lead, manganese, chromium, cadmium, and arsenic) are investigated in vegetables, fruits, and fish species collected from the central market (called Shaheb Bazar) of Rajshahi City, Bangladesh. The foodstuffs examined for metal constituents are the basis of human nutrition in the study area. The highest concentrations of Mn and As in vegetables (onion and pointed gourd, respectively), Cr and Cd in fruits (black berry and mango, respectively), and Pb in fish (catla) are recorded. Health risks associated with these heavy metals are evaluated due to dietary intake. Target hazard quotient (THQ) and hazard index (HI) are calculated to evaluate the non-carcinogenic health risk from individual and combined heavy metals. The THQ values for individual heavy metals are below 1, suggesting that people would not experience significant health risks if they ingest a single heavy metal from one kind of foodstuff (e.g., vegetables). However, consumption of several of the foodstuffs could lead a potential health risk to human population since HI value is higher than 1. The relative contributions of vegetables, fishes, and fruits to HI are 49.44, 39.07, and 11.53 %, respectively. Also, the relative contributions of Pb, Cd, As, Mn, and Cr to HI are 51.81, 35.55, 11.73, 0.85, and 0.02 %, respectively. The estimation shows that the carcinogenic risk of arsenic exceeds the accepted risk level of l×10~(-6). Thus, the carcinogenic risk of arsenic for consumers is a matter of concern.
机译：考虑到由于食用食品而对人类健康造成的危害，调查了从中央市场（称为Shaheb Bazar）收集的蔬菜，水果和鱼类中重金属（铅，锰，铬，镉和砷）的浓度。孟加拉国拉杰沙希市。检查的金属成分食品是研究区域人类营养的基础。记录到蔬菜（分别是洋葱和尖瓜）中的Mn和As最高浓度，水果（分别是黑莓和芒果）中的Cr和Cd含量最高，而鱼（catla）中的Pb含量最高。与这些重金属有关的健康风险要通过饮食摄入来评估。计算目标危害商（THQ）和危害指数（HI），以评估单个和组合重金属的非致癌健康风险。每种重金属的THQ值均低于1，这表明如果人们从一种食品（例如蔬菜）中摄入一种重金属，就不会面临重大的健康风险。但是，由于HI值高于1，因此食用几种食品可能会给人类带来潜在的健康风险。蔬菜，鱼类和水果对HI的相对贡献分别为49.44％，39.07％和11.53％。另外，Pb，Cd，As，Mn和Cr对HI的相对贡献分别为51.81％，35.55％，11.73％，0.85％和0.02％。估计结果表明，砷的致癌风险超过了公认的1×10〜（-6）风险水平。因此，消费者对砷的致癌风险值得关注。

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  • 来源
    《Environmental Monitoring and Assessment》 |2013年第5期|3867-3878|共12页
  • 作者

    Narottam Saha; M. R. Zaman;

  • 作者单位

    Environmental and Tracer Studies Laboratory, Department of Applied Chemistry and Chemical Engineering,Faculty of Engineering, University of Rajshahi,Rajshahi 6205, Bangladesh;

    Environmental and Tracer Studies Laboratory, Department of Applied Chemistry and Chemical Engineering,Faculty of Engineering, University of Rajshahi,Rajshahi 6205, Bangladesh;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    heavy metals; estimated daily intake (edi); target hazard quotient (thq); hazard index (hi); human health risk;

    机译：重金属;估计每日摄入量（edi）;目标危险商（thq）;危害指数（高）;人类健康风险;

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