Heavy metals in the liver and muscle of <Emphasis Type="Italic">Micropogonias manni</Emphasis> fish from Budi Lake,Araucania Region,Chile: potential risk for humans |
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Authors: | Jaime Tapia Luis Vargas-Chacoff Carlos Bertrán Fernando Peña-Cortés Enrique Hauenstein Roberto Schlatter Claudio Jiménez Carolina Tapia |
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Institution: | 1.Institute of Natural Resources Chemistry,Universidad de Talca,Talca,Chile;2.Institute of Marine Science and Limnology, Science Faculty,Universidad Austral de Chile,Valdivia,Chile;3.Faculty of Natural Resources,Universidad Católica de Temuco,Temuco,Chile;4.Technology University of Chile,Concepción-Talcahuano,Chile |
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Abstract: | The concentrations of cadmium, lead, manganese and zinc were determined in the fish species Micropogonias manni captured in Budi Lake, Araucanía Region (Chile). The measurements were made by atomic absorption spectroscopy, and the analysis
considered the sex, weight and size of the species; the representative samples were taken from the liver and muscle tissue.
The method was validated using certified reference material (DOLT-1). The ranges of concentrations found in the muscle tissue
were: Cd, not determinate (n.d.)–0.26; Pb, n.d.–1.88; Mn, 0.02–12.17 and Zn, 0.48–39.04 mg kg−1 (dry weight). The concentrations in muscle tissue were generally lower than those found in the liver. With respect to the
average concentrations recorded for each metal in the edible part of the fish (muscle tissue), it was found that the levels
of Cd, Pb, Mn and Zn are within the ranges published by other authors in similar works and below the maximum concentration
limits permitted by current legislation (FAO/WHO 2004; EU 2001) and do not constitute a health hazard for consumers of this species. The results were subjected to statistical analysis
to evaluate the correlations between the content of the various metals and the sex, weight and size of each sample. |
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