Adam Abdul-Aziz, Sackey Lyndon N A, Ofori Linda Aurelia
Department of Theoretical and Applied Biology, Faculty of Biosciences, Kwame Nkrumah University of Science and Technology, PMB, Kumasi, Ghana.
Department of Environmental Science, Faculty of Biosciences, Kwame Nkrumah University of Science and Technology, PMB, Kumasi, Ghana.
Heliyon. 2022 Aug 12;8(8):e10162. doi: 10.1016/j.heliyon.2022.e10162. eCollection 2022 Aug.
The greatest risks posed by heavy metals to human health are linked to exposure to hazardous metals, which may be present in staple foods such as cereals and legumes. In this study, the levels of harmful metals and vital minerals like cadmium (Cd), lead (Pb), zinc (Zn), copper (Cu), arsenic (As), and copper (As) in certain cereals and legumes sold in Tamale Aboabo Market in the Northern Region of Ghana were evaluated. A total of twenty-one (21) samples were randomly selected, digested, and analyzed using an atomic absorption spectrophotometer. The samples included three each of cowpea, groundnuts, and soybean (AAS). As concentrations varied from 0.017 mg/kg, Cd concentration was undetectable, Cu concentrations ranged from 0.019 to 0.042 mg/kg, and Zn concentrations were low. The levels of As in the legumes and grains were higher than the 0015 mg/kg FAO/WHO guideline limit. According to the study, there is a risk associated with consuming any of the cereal and legume crops offered in the Tamale Aboabo market that contain any amount of As. The use of pesticides, fertilizers, and runoff from other agricultural fields may have contributed to the higher levels in the cereals. The hazard index via ingestion values for both adults and children were found to be less than 1, indicating no need for potential non-carcinogenic concern. Generally, there is no cancer risk with consumption of the cereals and legumes in terms of all the metals investigated.
重金属对人类健康构成的最大风险与接触有害金属有关，这些有害金属可能存在于谷物和豆类等主食中。在本研究中，对加纳北部地区塔马利阿博阿博市场销售的某些谷物和豆类中的有害金属以及镉（Cd）、铅（Pb）、锌（Zn）、铜（Cu）、砷（As）等重要矿物质的含量进行了评估。总共随机选取了二十一个（21）样本，进行消化处理后使用原子吸收分光光度计进行分析。样本包括豇豆、花生和大豆各三个（原子吸收光谱法）。砷的浓度从0.017毫克/千克不等，镉浓度未检出，铜浓度在0.019至0.042毫克/千克之间，锌浓度较低。豆类和谷物中的砷含量高于粮农组织/世界卫生组织0.015毫克/千克的指导限值。根据该研究，食用塔马利阿博阿博市场提供的任何含有任何量砷的谷物和豆类作物都存在风险。农药、化肥的使用以及其他农田的径流可能导致了谷物中较高的含量。发现成人和儿童通过摄入途径的危害指数均小于1，表明无需对潜在的非致癌问题担忧。总体而言，就所调查的所有金属而言，食用这些谷物和豆类不存在癌症风险。
