International Journal of Environment and Pollution Research (IJEPR)

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Seasonal Variation in Hydro Chemistry of River Benue at Makurdi, Benue State Nigeria

Abstract

The hydrochemistry of River Benue at Makurdi was studied for two years (July 2011-June 2013).  Water samples were collected monthly from five different Stations on the shoreline of River Benue at Makurdi. The hydrochemistry of the water samples were examined using standard methods. The results of the physico-chemical parameters indicate the river water samples with the following characteristics: conductivity ranged from 139±215.05µS/cm – 63.95±30.94µS/cm, pH varied from 6.33±0.59-6.95±0.86, TDS varied from 28.29±11.69mg/L- 69.14±106.65mg/L, TSS varied from 41.00±25.42mg/L- 87.56±57.39mg/L, colour ranged from 192.60±143.79TCU-393.01±175.73TCU, turbidity ranged from 44.53±44.28NTU – 91.38±56.54NTU, surface water temperature ranged from 28.09±1.970C – 28.99±1.630C, bicarbonate ranged from 121.98±59.13mg/L – 185.61±57.20mg/L, chloride ranged from 117.44±59.46mg/L – 173.07±71.27mg/L, nitrate ranged from 2.23±3.14mg/L – 3.76±5.22mg/L, sulphate ranged from 10.41±9.84mg/L- 17.24±15.21mg/L, phosphate ranged from 0.92±1.11mg/L- 1.47±2.07mg/L and copper ranged from 0.11±0.09mg/L- 0.31±0.34mg/L. The mean values were generally within the WHO and the Nigerian Standard for Drinking Water Quality accepted maximum limit except for colour and turbidity. The result of ANOVA for all the parameters was significant during the seasons (P˂0.05), except for TDS, TSS and temperature (P˃0.05). Across the Stations temperature, bicarbonate, nitrate, sulphate, phosphate and copper were not significant (ANOVA, P˃0.05). Generally the wet seasons had more values as compared to dry months .It is recommended that the discharged of effluents and other waste into the River Benue should be controlled and enforced

Keywords: Hydrochemistry, Makurdi, River Benue, Seasonal variation

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Email ID: editor.ijepr@ea-journals.org
Impact Factor: 7.01
Print ISSN: 2056-7537
Online ISSN: 2056-7545
DOI: https://doi.org/10.37745/ijepr.13

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