Assessment of the Physico-Chemical Quality of Waters in the Canton of Bangeli

Bouwèdèo TOI BISSANG^1, , Ogouvidé AKPAKI¹ and Gnon BABA^{1, 2}

¹Laboratory of Organic Chemistry and Environmental Sciences (LaCOSE), Faculty of Science and Technology, University of Kara; B.P 404 Kara, Togo

²Waste Management, Treatment and Recovery Laboratory (GTVD), Faculty of Science, University of Lomé; BP 1515 Lomé, Togo

Cite this paper

Bouwèdèo TOI BISSANG, Ogouvidé AKPAKI and Gnon BABA. Assessment of the Physico-Chemical Quality of Waters in the Canton of Bangeli. American Journal of Water Resources. 2023; 11(4):126-132. doi: 10.12691/AJWR-11-4-1

Abstract

Drinking water requires an acceptable physico-chemical quality in relation to water quality standards. They may not contain any substance which is harmful or which may harm the health of the consumer. In order to contribute to the control of water quality intended for human and animal consumption in the canton of Bangeli (in Togo), our study focused on the physico-chemical quality and the state of chemical pollution of the waters of this canton by using the water quality index (WQI) because of its usefulness in understanding water quality issues. A total of 28 points were selected, sampled and analyzed. The analyses are carried out in the dry and rainy seasons and focused on parameters such as pH, conductivity (EC), temperature, NH₄⁺, NO₃^-, NO₂^-, PO₄^3-, SO₄^2-, TH, Ca²⁺, Na⁺, K⁺, Fe et Cl^-. These results show that all the surface water and 66.66% of groundwater have an iron content greater than 0.3 mg/L. All the other parameters meet the standards except for one well where the nitrate content exceeds the standard value (50 mg/L). The calculated quality indices made it possible to realize that surface waters and 42% of groundwater analyzed are of poor quality (WQI > 100), so they require treatment before using as drinking water.

Keywords

Canton of Bangeli, physico-chemical, water quality, quality index, poor quality

Copyright

This work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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