Assessment of heavy metal contamination in water and largescale yellowfish (Labeobarbus marequensis, Smith 1841) from Solwezi River, North-Western Zambia

AbstractThe contamination of heavy metals in the Largescale Yellowfish (Labeobarbus marequensis) from the Solwezi River in North-western Zambia was investigated. The fish were captured from three different sampling sites on the Solwezi River. Site I was located before the mining effluents could join...

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Main Authors: Oliver J. Hasimuna, Sahya Maulu, Moses Chibesa
Format: Article
Language:English
Published: Taylor & Francis Group 2022-12-01
Series:Cogent Food & Agriculture
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/23311932.2022.2121198
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author Oliver J. Hasimuna
Sahya Maulu
Moses Chibesa
author_facet Oliver J. Hasimuna
Sahya Maulu
Moses Chibesa
author_sort Oliver J. Hasimuna
collection DOAJ
description AbstractThe contamination of heavy metals in the Largescale Yellowfish (Labeobarbus marequensis) from the Solwezi River in North-western Zambia was investigated. The fish were captured from three different sampling sites on the Solwezi River. Site I was located before the mining effluents could join the river, site II was located immediately after the entry point of the mining effluent into the river, while site III was located downstream of where the effluents from the mining company had joined the river. The water and fish organs (muscle, gills, and liver) were checked for contamination with heavy metals. The values were compared with the established permissive levels considered safe for human consumption by the World Health Organization (WHO), and the Food and Agriculture Organization. In decreasing order, the contamination levels in fish organs were: Fe > Zn > Cu (gills), Fe > Zn > Cu (liver) and Zn > Fe > Cu (muscle). Co, Mn, and Pb were not detected in all the parts of the fish investigated. In water, the concentrations were in the order Zn > Fe > CU. The Metal Pollution Index (MPI) showed that site II was the most concentrated with heavy metals, while the gills were the most concentrated part of the fish. These results showed that the levels of the heavy metals investigated in the water and fish were within permissive levels by WHO and FAO. However, future expansion of existing companies and the introduction of new ones should strictly be monitored and their risks studied to safeguard fish and other aquatic products.
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spelling doaj.art-c7d7d0b9991746999949f32506b94cac2022-12-22T03:54:02ZengTaylor & Francis GroupCogent Food & Agriculture2331-19322022-12-018110.1080/23311932.2022.2121198Assessment of heavy metal contamination in water and largescale yellowfish (Labeobarbus marequensis, Smith 1841) from Solwezi River, North-Western ZambiaOliver J. Hasimuna0Sahya Maulu1Moses Chibesa2National Aquaculture Research and Development Centre, Department of Fisheries, Ministry of Fisheries and Livestock, Kitwe, P.O Box 22797 ZambiaDepartment of Research and Development, Centre for Innovative Approach Zambia (CIAZ), Lusaka, ZambiaSchool of Graduate Studies, Copperbelt University, Kitwe, P.O Box 21692, ZambiaAbstractThe contamination of heavy metals in the Largescale Yellowfish (Labeobarbus marequensis) from the Solwezi River in North-western Zambia was investigated. The fish were captured from three different sampling sites on the Solwezi River. Site I was located before the mining effluents could join the river, site II was located immediately after the entry point of the mining effluent into the river, while site III was located downstream of where the effluents from the mining company had joined the river. The water and fish organs (muscle, gills, and liver) were checked for contamination with heavy metals. The values were compared with the established permissive levels considered safe for human consumption by the World Health Organization (WHO), and the Food and Agriculture Organization. In decreasing order, the contamination levels in fish organs were: Fe > Zn > Cu (gills), Fe > Zn > Cu (liver) and Zn > Fe > Cu (muscle). Co, Mn, and Pb were not detected in all the parts of the fish investigated. In water, the concentrations were in the order Zn > Fe > CU. The Metal Pollution Index (MPI) showed that site II was the most concentrated with heavy metals, while the gills were the most concentrated part of the fish. These results showed that the levels of the heavy metals investigated in the water and fish were within permissive levels by WHO and FAO. However, future expansion of existing companies and the introduction of new ones should strictly be monitored and their risks studied to safeguard fish and other aquatic products.https://www.tandfonline.com/doi/10.1080/23311932.2022.2121198Bioaccumulationmetals in fish organshuman health riskmetal pollution indextoxicityZambia
spellingShingle Oliver J. Hasimuna
Sahya Maulu
Moses Chibesa
Assessment of heavy metal contamination in water and largescale yellowfish (Labeobarbus marequensis, Smith 1841) from Solwezi River, North-Western Zambia
Cogent Food & Agriculture
Bioaccumulation
metals in fish organs
human health risk
metal pollution index
toxicity
Zambia
title Assessment of heavy metal contamination in water and largescale yellowfish (Labeobarbus marequensis, Smith 1841) from Solwezi River, North-Western Zambia
title_full Assessment of heavy metal contamination in water and largescale yellowfish (Labeobarbus marequensis, Smith 1841) from Solwezi River, North-Western Zambia
title_fullStr Assessment of heavy metal contamination in water and largescale yellowfish (Labeobarbus marequensis, Smith 1841) from Solwezi River, North-Western Zambia
title_full_unstemmed Assessment of heavy metal contamination in water and largescale yellowfish (Labeobarbus marequensis, Smith 1841) from Solwezi River, North-Western Zambia
title_short Assessment of heavy metal contamination in water and largescale yellowfish (Labeobarbus marequensis, Smith 1841) from Solwezi River, North-Western Zambia
title_sort assessment of heavy metal contamination in water and largescale yellowfish labeobarbus marequensis smith 1841 from solwezi river north western zambia
topic Bioaccumulation
metals in fish organs
human health risk
metal pollution index
toxicity
Zambia
url https://www.tandfonline.com/doi/10.1080/23311932.2022.2121198
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