本研究旨在量化潜在有毒元素（PTE）的浓度水平，例如铝、砷、镉、铬、铜、镍、铅、锌和汞，以及鱼类和海鲜物种各种组织中微塑料的存在情况，在多瑙河流域下游实现商业化。根据肌肉组织中的 PTE 浓度水平进行健康风险评估分析。计算 PTE 的估计每日摄入量 (EDI)、目标风险商 (THQ)、风险指数 (HI) 和目标癌症风险 (TR)。据观察，海鲜类别中的物种的 PTE 水平最高。例如，在双壳类贻贝（来自黑海）的肌肉组织中，观察到锌含量最高（37.693mg/kg），并鉴定出聚苯乙烯聚合物的存在。与 PTE 暴露的 EDI、THQ、HI 和 TR 相关的值显着低于 1。版权所有 © 2023。由 Elsevier B.V. 出版。

The present study aimed to quantify the concentration levels of potentially toxic elements (PTEs) such as aluminum, arsenic, cadmium, chromium, copper, nickel, lead, zinc, and mercury, as well as microplastics occurrence in various tissues of fish and seafood species, commercialized in the Lower Danube River Basin. A health risk assessment analysis was performed based on the PTEs concentration levels in the muscle tissue. Estimated daily intake (EDI), target hazard quotient (THQ), hazard index (HI), and target cancer risk (TR) of PTEs were calculated. It was observed that the species within the seafood category registered the highest levels of PTEs. For instance, in the muscle tissue of bivalve Mytilus galloprovincialis (from the Black Sea), the highest value was observed in the case of Zn (37.693mg/kg), and the presence of polystyrene polymer was identified. The values associated with EDI, THQ, HI, and TR of PTE exposure were significantly lower than 1.Copyright © 2023. Published by Elsevier B.V.