Student Research Committee, Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Environ Sci Pollut Res Int. 2019 Sep;26(25):25399-25413. doi: 10.1007/s11356-019-05863-y. Epub 2019 Jul 13.
Human and animals are exposed to heavy metals such as arsenic (As) and mercury (Hg) through atmospheric depositions, industrial effluents, chemical pesticides and fertilizers, erosion of geological beds, and mining wastes which can result in the contamination of food chains. The aim of the current study was to review the available papers reporting contamination levels of As and Hg in commonly consumed foods in Iran. A descriptive search was carried out with specific keywords and entry criteria in databases of Science-Direct, PubMed, Scopus, Google Scholar, and Scientific Iranian Database (SID) published from January 2000 to July 2018. All articles were assessed by two reviewers, and final decision was made through discussions or a third reviewer arbitration. The articles were categorized based on the type of food groups including rice, fruit, vegetable, fish, seafood, drinking water, tea, and miscellanies. Of 221 identified articles on As and Hg contaminations in foods, 92 articles were selected using defined criteria. Published articles were reviewed to report contamination (mean and rate) of each food group in Iran. Results showed that rice and fish included the highest contamination rates of As and Hg, respectively. In general, As and Hg contents in Iranian foods cause serious health concerns due to the consumption quantities of the main foods. Further risk-based surveillance studies must be carried out to decrease exposure to As and Hg from dietary and non-dietary sources.
人类和动物通过大气沉积、工业废水、化学农药和肥料、地质床的侵蚀以及采矿废物接触到砷（As）和汞（Hg）等重金属，这可能导致食物链受到污染。本研究旨在回顾现有的报告伊朗常见食用食品中 As 和 Hg 污染水平的文献。在 2000 年 1 月至 2018 年 7 月期间，我们在 Science-Direct、PubMed、Scopus、Google Scholar 和 Scientific Iranian Database（SID）数据库中使用特定的关键词和输入标准进行了描述性搜索。两名评审员对所有文章进行了评估，最终通过讨论或第三名评审员仲裁做出决定。文章根据包括稻米、水果、蔬菜、鱼类、海鲜、饮用水、茶和杂项等食物组的类型进行分类。在 221 篇关于食物中 As 和 Hg 污染的已识别文章中，有 92 篇文章是使用既定标准选择的。审查已发表的文章以报告伊朗每个食物组的污染（平均值和比率）。结果表明，稻米和鱼类的 As 和 Hg 污染率最高。总的来说，由于主要食物的消费数量，伊朗食品中 As 和 Hg 的含量对健康造成了严重的担忧。必须开展基于风险的监测研究，以减少从饮食和非饮食来源摄入 As 和 Hg。
