重金属造成的海洋污染已成为一个重大的环境问题,近年来受到越来越多的关注。海洋生物组织中重金属的积累对海洋生态系统和依赖海产品作为主要食物来源的人类构成了重大威胁。鱼类和甲壳类动物是评估水生环境中重金属污染的有效生物监测器。在这项研究中,我们确定了几种重金属的浓度,包括镉(Cd),铅(Pb),镍(Ni),汞(Hg),和锡(Sn),在四种鱼类中(Mugilcephalus,穆吉尔·卡皮托,L.aurata,和Moronelabrax)和五种甲壳类动物(S.rivulatus,蓝纹皮病,海带起伏,R.decussatus,Callinectessapidus,和MetapenaeusStebbingi)在冬季和夏季都来自Temsah湖。为了评估与食用这些鱼类和甲壳类动物相关的潜在生态和健康风险,我们计算了金属污染指数(MPI),每周摄入量(EWI),目标危险商(THQ),和致癌风险(CR)值。结果表明,与冬季相比,研究样品的夏季金属含量显着增加。此外,该物种肌肉中重金属的浓度通常超过肝脏和g中的浓度。MPI值表明,Moronelabrax在冬季表现出最高的值,而L.aurata在夏季表现出最高的值。Mugilcephalus在两个季节中都表现出最低的MPI值。发现所研究金属的EWI值低于相应的每周容许摄入量(TWI)值。此外,在平均暴露条件下,该地区大多数研究物种的THQ和HI数据普遍低于1。所研究物种中所研究金属的计算CR值表明可接受的致癌风险水平。因此,这表明在Temsah湖中消费研究的物种不会对消费者带来任何潜在的健康危害。
Marine pollution caused by heavy metals has emerged as a significant environmental concern, garnering increased attention in recent years. The accumulation of heavy metals in the tissues of marine organisms poses substantial threats to both marine ecosystems and human populations that rely on seafood as a primary food source. Fish and
crustaceans are effective biomonitors for assessing heavy metal contamination in aquatic environments. In this study, we determined the concentrations of several heavy metals, including cadmium (Cd), lead (Pb), nickel (Ni), mercury (Hg), and tin (Sn), in four fish species (Mugil cephalus, Mugil capito, L. aurata, and Morone labrax) and five crustacean species (S. rivulatus, Cerastoderma glaucum, Paratapes undulatus, R. decussatus, Callinectes sapidus, and Metapenaeus Stebbingi) from Temsah Lake during both winter and summer seasons. To evaluate the potential ecological and health risks associated with consuming these fish and crustacean species, we calculated the metal pollution index (MPI), weekly intake (EWI), target hazard quotient (THQ), and carcinogenic risk (CR) values. The results revealed a noticeable increase in metal levels during the summer compared to winter in the studied samples. Moreover, the concentration of heavy metals in the muscles of the species generally exceeded those in the liver and gills. The MPI values indicated that Morone labrax exhibited the highest values during winter, while L. aurata showed the highest values during summer. Mugil cephalus demonstrated the lowest MPI values in both seasons. The EWI values for the studied metals were found to be lower than the corresponding tolerable weekly intake (TWI) values. Additionally, under average exposure conditions, the THQ and HI data were generally below one for most study species in the area. The calculated CR values for investigated metals in the studied species indicated acceptable carcinogenic risk levels. Therefore, this suggests that consuming studied species within Temsah lake does not present any potential health hazards for consumers.