Faculty of Fisheries, Department of Basic Aquatic Sciences, Inonu University, Malatya, Turkey.
Aquaculture Research Institute, Elazığ, Turkey.
Environ Sci Pollut Res Int. 2017 Oct;24(29):23114-23124. doi: 10.1007/s11356-017-9958-5. Epub 2017 Aug 21.
In this study, levels of ten metals (arsenic, cadmium, cobalt, chromium, copper, iron, manganese, nickel, lead, and zinc) in muscles of farmed and escaped farmed rainbow trout (Oncorhynchus mykiss) in the Keban Dam Reservoir (Turkey) were determined. Also, human health risks associated with their consumption were assessed. Of ten metals, only Co and Fe levels in escaped rainbow trout were significantly higher than those in farmed rainbow trout. The metal levels in farmed and escaped rainbow trout were below the maximum permissible limits. The estimated daily intake (EDI) of each metal in both farmed and escaped farmed rainbow trout was much lower than the respective tolerable daily intake (TDI). The target hazard quotient (THQ) values for individual metal and the total THQ values for combined metals were lower than 1 in both farmed and escaped rainbow trout, indicating no health risk for humans. The cancer risk (CR) values estimated for inorganic As in both farmed and escaped rainbow trout indicated low carcinogenic risk to the consumers. According to the maximum allowable monthly consumption limits (CR, adults may safely consume 24 meals of farmed rainbow trout per month or 39 meals of escaped rainbow trout per month, with minimal adverse carcinogenic and non-carcinogenic health effects. This study revealed that the risk from consuming farmed and escaped farmed rainbow trout in the Keban Dam Reservoir due to these trace elements is minimal.
本研究测定了土耳其卡班大坝水库养殖和逃逸养殖虹鳟肌肉中的十种金属（砷、镉、钴、铬、铜、铁、锰、镍、铅和锌）水平，并评估了其食用相关的人类健康风险。在这十种金属中，只有逃逸虹鳟肌肉中的 Co 和 Fe 水平显著高于养殖虹鳟。养殖和逃逸养殖虹鳟的金属水平均低于最大允许限量。养殖和逃逸养殖虹鳟的每种金属的估计每日摄入量（EDI）均远低于各自的可耐受每日摄入量（TDI）。个体金属的目标危害系数（THQ）值和组合金属的总 THQ 值在养殖和逃逸养殖虹鳟中均低于 1，表明对人类无健康风险。对养殖和逃逸养殖虹鳟中无机 As 的致癌风险（CR）值估计表明，消费者面临的致癌风险较低。根据最大允许月消费限量（CR），成年人每月可安全食用 24 餐养殖虹鳟或 39 餐逃逸养殖虹鳟，对致癌和非致癌健康影响最小。本研究表明，由于这些微量元素的存在，从卡班大坝水库养殖和逃逸养殖虹鳟中摄入这些元素的风险很小。
