Assessment of Potentially Toxic Metals in Fish from Lake Manyara, Northern Tanzania

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dc.contributor.authorSawe, Shovi
dc.contributor.authorAmasi, Aloyce
dc.contributor.authorWynants, Maarten
dc.date.accessioned2023-10-12T07:04:11Z
dc.date.available2023-10-12T07:04:11Z
dc.date.issued2023-09
dc.descriptionThis research article was published in Bulletin of Environmental Contamination and Toxicology, 2023en_US
dc.description.abstractElemental tracer concentrations of copper, lead, nickel and zinc, were assessed in the muscles of Oreochromis amphimelas and Clarias gariepinus from Lake Manyara, Tanzania, to evaluate their safety to consumers, specifcally humans. Results revealed that no elemental concentrations exceeded the FAO permissible levels, indicating fsh from all sites are safe for human consumption. However, based on the highest found concentration of Pb, we recommend a maximum consumption of 2.2 kg of fsh from Lake Manyara per week. No signifcant diferences were observed in the metal concentrations between the two fsh species, suggesting there is no bioaccumulation in the food chain. Moreover, no signifcant diferences were found between fsh landing sites, indicating there are no regions in the lake with higher pollution. These fndings indicate that PTM concentrations have not increased to toxic levels due to increased mobilisation from the catchment. Continued monitoring of potential toxic metal concentrations in fsh is recommended due to endorheic nature of Lake Manyara and increasing anthropogenic activities in its catchment area.en_US
dc.identifier.urihttps://doi.org/10.1007/s00128-023-03794-6
dc.identifier.urihttps://dspace.nm-aist.ac.tz/handle/20.500.12479/2288
dc.language.isoenen_US
dc.publisherSpringer USen_US
dc.subjectEast African Rift lakesen_US
dc.subjectEnergy dispersive X-ray fuorescenceen_US
dc.subjectRecommended weekly intakeen_US
dc.subjectPermissible levelsen_US
dc.subjectZincen_US
dc.subjectCopperen_US
dc.subjectNikkelen_US
dc.subjectClarias gariepinusen_US
dc.subjectOreochromis amphimelaen_US
dc.titleAssessment of Potentially Toxic Metals in Fish from Lake Manyara, Northern Tanzaniaen_US
dc.typeArticleen_US

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