Metal concentrations in water column, benthic macroinvertebrates and tilapia from Delimi river, Nigeria

Omoregie, E.; Okoronkwo, MO; Eziashi, A. C.; Zoakah, AI

doi:10.4314/jas.v17i1.19911

Cited by 6 publications

(4 citation statements)

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“…They also impart a metallic taste to water that can render its consumption disagreeable. In surface or ground waters, one finds iron and manganese in different chemical forms (dissolved, precipitated, free or complexed) and in variable concentrations (Myint and Barry, 1999;Omoregie et al, 2002;Muwanga and Barifaidjo, 2006). They may be present in concentrations of about 2 to 5 mg/L of iron and 0.5 to 2 mg/L of manganese (Ellis et al, 2000;Roccaro et al, 2007) or in concentrations that are markedly higher and capable of attaining 20 mg/L of iron and 5 mg/L of manganese (Berbenni et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Effect of pre-chlorination on the efficiency of iron and manganese removal from surface water by coagulation-flocculation using aluminium sulphate: case of the Okpara dam in the Republic of Benin

Zogo¹,

Bawa²,

Soclo³

et al. 2011

International Journal of Biological and Chemical Sciences

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Okpara dam water contained significant amounts of iron and manganese that could be problematic for consumers. In this study, we perfected a deferrization and demanganization technique by coagulationflocculation preceded by chlorination. The maximum iron and manganese concentrations varied from 30 to 50 mg/L and 1.5 to 4.5 mg/L respectively before treatment. Purification yields depended on the conditions of operation. Under the least favourable conditions (coagulation at free pH), the removal yields varied from 10 to 73% for iron and from 2 to 24% for manganese. Under the best conditions (pre-chlorination and coagulation at pH 6.5), we obtained between 50 and 95% elimination for iron and 20 and 45% for manganese. The treatment was therefore little adapted for the removal of manganese.

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Section: Introductionmentioning

confidence: 99%

Effect of pre-chlorination on the efficiency of iron and manganese removal from surface water by coagulation-flocculation using aluminium sulphate: case of the Okpara dam in the Republic of Benin

Zogo¹,

Bawa²,

Soclo³

et al. 2011

International Journal of Biological and Chemical Sciences

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“…Heavy metals are easily absorbed by aquatic life forms and accumulation may occur in higher concentration (Omoregie et al, 2002;ElSherif, 2012). Fish can take up heavy metals in their diets and bioaccumulate them at different rates in their muscles and organs (Phillips and Rainbow, 1994).…”

Section: Discussionmentioning

confidence: 99%

Heavy Metals Contamination in the Tissues of Clarias gariepinus (Burchell, 1822) Obtained from Two Earthen Dams (Asa and University of Ilorin Dams) in Kwara State of Nigeria

Abubakar

Adeshina

2019

Harran Üniversitesi Veteriner Fakültesi Dergisi

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This study determined the levels of heavy metals contamination in the tissues of 400 Clarias gariepinus obtained from two dams (Asa and University of Ilorin) in Kwara State of Nigeria. C. gariepinus, (both male and female) between the mean weight of 149-154g and total length of between 28-34cm were investigated between the month of September and December, 2018. Copper (Cu), zinc (Zn), cadmium (Cd), chromium (Cr) and lead (Pb) in flesh, heart, kidney and livers of species from the two dams were determined using Atomic Absorption Spectrophotometer (AAS). The results showed that heavy metals contamination in the tissues sampled from Asa and Unilorin dams were in order of Zinc > Copper > Chromium. Cadmium and lead were not detected. Furthermore, C. gariepinus from Asa dam bioaccumulated heavy metals at higher concentrations than samples from Unilorin dam. Body weight, total length and age were found to be predisposing factors to heavy metals concentrations in the body of fish while sexes had no effect.The heavy metals concentration detected in C. gariepinus sampled from the two dams did not exceed the limits set by WHO and FAO suggesting that the fishes wholesome for human consumption.

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“…Studies have been done to detect the presence of the heavy metal pollutants in water bodies in Nigeria (Olaifa et al, 2004;Omoregie et al, 2002;Oguzie, 2000). Ogun River with its tributaries is the main river that traverses the length and breadth of Opeji and Abeokuta metropolis in Ogun State where it serves as the source of domestic, agricultural and water consumption.…”

Section: Introductionmentioning

confidence: 99%

The effects of heavy metals concentration on some commercial fish in Ogun River, Opeji, Ogun State, Nigeria

Adeosun¹,

Akinyemi²,

Idowu³

et al. 2015

Afr. J. Environ. Sci. Technol.

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A study was conducted on commercially important fish species of heavy metals in water bodies. The primary objectives were to find out the amount of heavy metals concentration in the fish species, sediments and water samples at the deep and shallow part of the river, to determine the toxicity and relationship between the collected samples and the rate at which it pollutes the water. Atomic absorption spectrophotometer (AAS) evaluates their wholesomeness for human consumption. Four heavy metals (lead, cadmium, copper and zinc) were analyzed and only copper and zinc were found to be present in the digested samples. The concentration of copper in the fish (flesh) was 0.09 mg/l and that of zinc was 0.25 mg/l. In the bone samples, copper was found to have 0.17 mg/l and zinc 0.22 mg/l. In the water samples analyzed, the concentration of copper is 0.035 mg/l while that of zinc is 0.047 mg/l. In the sediment sample, the amount of copper is 310.0 mg/kg while that of zinc is 2050.0 mg/kg. This however signifies that the fish species in the Ogun River as well as the water is suitable for consumption which was found to be less than the World Health Organization (WHO) maximum recommended acceptable limits in the food.

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Metal concentrations in water column, benthic macroinvertebrates and tilapia from Delimi river, Nigeria

Cited by 6 publications

References 0 publications

Effect of pre-chlorination on the efficiency of iron and manganese removal from surface water by coagulation-flocculation using aluminium sulphate: case of the Okpara dam in the Republic of Benin

Effect of pre-chlorination on the efficiency of iron and manganese removal from surface water by coagulation-flocculation using aluminium sulphate: case of the Okpara dam in the Republic of Benin

Heavy Metals Contamination in the Tissues of Clarias gariepinus (Burchell, 1822) Obtained from Two Earthen Dams (Asa and University of Ilorin Dams) in Kwara State of Nigeria

The effects of heavy metals concentration on some commercial fish in Ogun River, Opeji, Ogun State, Nigeria

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