Fishes are important for the maintenance and growth of living things, particularly human beings. Due to the nutritional value of fish, people are encouraged to include it into their diet. Fish is consumed in almost every house in Igbokoda, Nigeria and in the surrounding communities and is typically consumed in either (smoked, fried, cooked) condition. When these fish are polluted with heavy metals, they bioaccumulate and cause certain human organs to malfunction. The content of toxic elements in two different species (Mormyrus rume and Heterobranchus longifilis) of fish captured from the Igbokoda River of Ilaje was analyzed using Energy Dispersive X-ray Fluorescence (EDXRF). The result obtained showed that the mean values of all the elements were higher than the recommended FAO/WHO and International Atomic Energy Agency (IAEA) 407 standards, except for K, Ca, Sr and As, which were lower than the IAEA 407. Generally, the concentration of elements in muscle and head was higher than that of tail for each species for both M. rume and H. longifilis. The target hazard quotient (THQ) of each element through the consumption of Igbokoda fish for both adults and children increases in this order Mn > Cu > Ni > Zn > Fe > As > Pb and Mn > Cu > Ni > Zn > Fe > As > Pb for M. rume and H. longifilis respectively.

鱼类对于生物特别是人类的维持和生长非常重要。由于鱼类的营养价值，鼓励人们将其纳入饮食。尼日利亚伊格博科达（Igbokoda）和周边社区的几乎每所房屋都食用鱼，并且通常以（熏制，油炸，煮熟）两种状态食用鱼。当这些鱼被重金属污染时，它们会积聚并导致某些人体器官发生功能异常。两种不同物种（Mormyrus rume和Heterobranchus longifilis）中有毒元素的含量使用能量分散X射线荧光光谱（EDXRF）分析了从伊拉耶伊格博科达河捕获的鱼）。所得结果表明，除K，Ca，Sr和As均低于IAEA 407外，所有元素的平均值均高于推荐的FAO / WHO和国际原子能机构（IAEA）407标准。 。对于瘤胃和长翅菌来说，每种物种的肌肉和头部中元素的浓度均高于尾部。成年人和儿童通过食用伊博科达鱼而获得的每种元素的目标危险商（THQ）依次增加Mn> Cu> Ni> Zn> Fe> As> Pb Mn> Cu> Ni> Zn> Fe> As> Pb >朗姆酒和长双歧杆菌的铅 分别。