Heavy Metal Bioaccumulation in Highly Consumed Pelagic and Benthic Fish and Associated Health Risk.

Autor: Blankson ER; Department of Animal Biology and Conservation Science, School of Biological Sciences, University of Ghana, Accra, Ghana. erblankson@gmail.com., Ohene-Obeng NKA; Department of Animal Biology and Conservation Science, School of Biological Sciences, University of Ghana, Accra, Ghana., Awuah BA; Department of Animal Biology and Conservation Science, School of Biological Sciences, University of Ghana, Accra, Ghana., Oduro D; Department of Animal Biology and Conservation Science, School of Biological Sciences, University of Ghana, Accra, Ghana., Ewool J; Department of Animal Biology and Conservation Science, School of Biological Sciences, University of Ghana, Accra, Ghana., Gbogbo F; Department of Animal Biology and Conservation Science, School of Biological Sciences, University of Ghana, Accra, Ghana.
Jazyk: angličtina
Zdroj: Biological trace element research [Biol Trace Elem Res] 2024 Aug; Vol. 202 (8), pp. 3781-3788. Date of Electronic Publication: 2023 Nov 07.
DOI: 10.1007/s12011-023-03943-2
Abstrakt: The present study investigated the levels of Manganese (Mn), Cadmium (Cd), Copper (Cu), Zinc (Zn), Lead (Pb) and Iron (Fe) in the tissues of a benthic fish (Clarias gariepinus) and a pelagic fish (Oreochromis niloticus), which are highly consumed in Ghana. The fish were collected from the Weija reservoir, which is an important source of fishery and potable water in Accra, Ghana. The results indicate heavy metal accumulation in all the tissues (gills, liver and muscles) analyzed. The bioaccumulation of all the metals was lowest in the muscles compared to the liver and gills in both species. The bioaccumulation of the metals was generally higher in the tissues of the catfish, except for Fe and Zn. Fe was higher in the gills and liver of the tilapia, and Zn was higher in the liver of the tilapia. The analysis of relationships between metal levels in the different tissues and the size of the fish showed a few significant correlations. The results also showed that all metals showed no potential health risk to consumers, as THQs and TTHQs in tilapia and catfish were less than one, and the metal levels in both species were all below the FAO/WHO maximum permissible limits.
(© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
Databáze: MEDLINE
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