Contamination and health risk assessment of heavy metals in selected highly edible fish species from lake nyasa, Tanzania

dc.contributor.authorMwambene, Bupoki
dc.contributor.authorMwakalesi, Alinanuswe Joel
dc.contributor.authorNehemia, Alex Nahnson
dc.date.accessioned2025-07-11T15:07:13Z
dc.date.available2025-07-11T15:07:13Z
dc.date.issued2023
dc.descriptionJournal Article
dc.description.abstractHeavy metal contamination emanating from increased industrial and anthropogenic activities poses considerable environmen- tal risks to water resources, aquatic biodiversity, and human health. These metals are major sources of various unfavorable environmental changes and human health hazards. This research investigated the potential contamination level and health risk assessment of heavy metals (Fe, Zn, Ni, Cu and Cr) in five highly edible fishes (O. microlepis, C. gariepinus, O.niloticus, R. moorii,B. meridionalis) from Lake Nyasa. The results indicated that gills contained higher amounts of heavy metals compared to muscles. The levels of Fe and Zn were higher in the gills of C. gariepinus and O.niloticus than O. microlepis, R. moorii, and B. meridionalis. Similarly, amounts of Cu and Cr were higher in the gills of C. gariepinus and O. microlepis. The general trend of heavy metal concentrations accumulated in selected fish species was Fe > Zn > Ni > Cu > Cr. The amounts of heavy metals found in the fish samples were within acceptable limits set by FAO and WHO. Furthermore, the risk assessments indicated that the current exposure levels are unlikely to cause serious health risks. However, the progressive monitoring of levels of heavy metals in various aquatic organisms from Lake Nyasa is important for the continued protection of human health against hazardous health effects
dc.identifier.urihttps://doi.org/10.1007/s42250-023-00672-w
dc.identifier.urihttps://www.suaire.sua.ac.tz/handle/123456789/6800
dc.language.isoen
dc.publisherThe Tunisian Chemical Society and Springer Nature Switzerland
dc.subjectTanzania
dc.subjectLake Nyasa
dc.subjectFish
dc.subjectHeavy metals
dc.subjectPollution
dc.titleContamination and health risk assessment of heavy metals in selected highly edible fish species from lake nyasa, Tanzania
dc.typeArticle

Files

Original bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
9. Mwambene B Mwakales J. A. Nehemia N. A 2023
Size:
1.53 MB
Format:
Unknown data format

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description: