Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad de La Laguna, 38200, La Laguna, Santa Cruz de Tenerife, Spain.
Departamento de Biología Animal y Edafología y Geología (Unidad Departamental de Ciencias Marinas), Universidad de La Laguna, 38206, La Laguna, Santa Cruz de Tenerife, Spain.
Environ Sci Pollut Res Int. 2018 Jan;25(3):2630-2642. doi: 10.1007/s11356-017-0697-4. Epub 2017 Nov 13.
The increases in urbanization, demography and industrial activity, along with growing human needs which exploit the resources of the planet, have exponentially exacerbated pollution. In particular, the discharge of heavy metals into the marine ecosystem is a problem of global magnitude, as this may damage the diversity of marine species and ecosystems because of their toxicity, long persistence and bioaccumulation. Consequently, it is necessary to carry out an assessment of the risk of human exposure from the consumption of marine species potentially exposed to this type of pollutants. In the present study, the levels of toxic heavy metals (Cd, Pb and Al) as well as trace and essential metals (B, Ba, Co, Cu, Cr, Fe, Li, Mn, Mo, Ni, Sr, V and Zn) and macronutrients (Ca, K, Mg, Na) have been quantified in two species of fish for human consumption. In order to do this, a total of 80 muscle samples and 80 liver samples, belonging to two species of osteichthyes (bony fish), Diplodus sargus cadenati and Sparisoma cretense, were analyzed. The specimens studied were captured on the north coast of Gran Canaria (Canary Islands) using recreational fishing techniques. As they caught from the shore, the data obtained respond to the need to assess the toxic levels in two representative species of artisanal and recreational fishing in the area. The risk assessment indicated that these two fish species are safe for the average consumer; however, if the livers are frequently consumed, there may be potential risks because they exceed the Admissible Daily Intakes for Pb and Cd.
城市化、人口增长和工业活动的增加，以及人类不断增长的需求对地球资源的开发，使得污染呈指数级增长。特别是重金属向海洋生态系统的排放是一个全球性的问题，因为这些重金属的毒性、持久性和生物累积性可能会破坏海洋物种和生态系统的多样性。因此，有必要对人类通过食用可能接触到这类污染物的海洋物种而暴露于重金属的风险进行评估。在本研究中，对两种供人类食用的鱼类的肌肉和肝脏样本进行了有毒重金属（Cd、Pb 和 Al）以及痕量和必需金属（B、Ba、Co、Cu、Cr、Fe、Li、Mn、Mo、Ni、Sr、V 和 Zn）和宏量营养素（Ca、K、Mg、Na）的水平进行了量化。为此，总共分析了 80 个肌肉样本和 80 个肝脏样本，这些样本来自两种硬骨鱼（骨鱼），即赤点石斑鱼和马鲛鱼。研究的标本是使用休闲渔业技术在大加那利岛（加那利群岛）北岸捕获的。由于这些鱼是从岸边捕获的，因此所获得的数据是为了评估该地区两种具有代表性的休闲渔业和手工渔业的有毒水平。风险评估表明，这两种鱼类对普通消费者是安全的；然而，如果经常食用肝脏，可能存在潜在风险，因为它们超过了 Pb 和 Cd 的可接受每日摄入量。
