Department of Marine Biology, Faculty of Marine Science, Chabahar Maritime University, Chabahar, Iran.
Environ Sci Pollut Res Int. 2020 May;27(13):14944-14952. doi: 10.1007/s11356-020-07907-0. Epub 2020 Feb 15.
This study was performed to determine the concentrations of copper (Cu), zinc (Zn), and lead (Pb) in the gill, liver, muscle, and tail fin tissues of Euthynnus affinis, Katsuwonus pelamis, and Thunnus albacares from Oman Sea. All samples were analyzed using a flame atomic absorption spectrophotometer and the results were expressed as μg g dry weight. Metal concentrations were significantly higher in the liver than other tissues in three species (with some exceptions) (p < 0.05). The concentrations of metal accumulation in tissues of tuna species followed the Zn > Cu > Pb. Correlation matrix and principal component analysis (PCA) revealed that Zn and Pb have anthropogenic sources. Estimated daily intake (EDI) in three tuna species for heavy metals were below the tolerable daily intake (TDI). Also, the mean target hazard quotient (THQ) based on studied metals in three tuna species was below 1, which suggests that consumption of these fish can be safe for human health in the Oman Sea. Graphical Abstract .
本研究旨在测定阿曼海鲐鱼、金枪鱼和黄鳍金枪鱼的鳃、肝、肌肉和尾鳍组织中铜（Cu）、锌（Zn）和铅（Pb）的浓度。所有样品均采用火焰原子吸收分光光度计进行分析，结果以μg/g 干重表示。三种鱼类（有些例外）的肝脏中金属浓度均显著高于其他组织（p<0.05）。金枪鱼组织中金属的积累浓度依次为 Zn>Cu>Pb。相关矩阵和主成分分析（PCA）表明 Zn 和 Pb 具有人为来源。三种金枪鱼的重金属估计每日摄入量（EDI）低于可耐受每日摄入量（TDI）。此外，基于三种金枪鱼研究金属的平均目标危害系数（THQ）低于 1，这表明在阿曼海域食用这些鱼类对人体健康是安全的。
