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Article
Author(s)
Mohamed Lamine Komara1, Adama Moussa Sacko2, Aboubacar Diallo3, Cheick Ahmed Tawel Camara4 and Mamadou Kabirou Bah5
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DOI:10.17265/2162-5263/2023.03.001
Affiliation(s)
1. Teacher-Researcher Department of Biology Gamal Abdel Nasser University of Conakry, Republic of Guinea
2. Laboratory technique, Higher Institute of Technology of Mamou, Republic of Guinea
3. DGA-Research/ISAU, Conakry 324 Republic of Guinea
4. Director of the Biochemistry degree program at Gamal Abdel Nasser University of Conakry, Republic of Guinea
5. Center for Environmental Studies and Research (CERE), Conakry 324 Republic of Guinea
ABSTRACT
As part of the determination of the possible impact of human activities on surface waters, case of Lake Sonfonia, six sampling sites were selected according to their solicitation by the population and their exposure to probable sources of pollution. The objective of this work is to monitor the physico-chemical quality of the waters of Lake Sonfonia during the low water level (March) and during the flood period (August) of the year 2021. Two sampling campaigns of water were carried out in dry weather and two others in cold weather. Parameters such as temperature, pH, EC (Electrical Conductivity), dissolved oxygen, TDS (Total Dissolved Solids) were measured in situ. Suspended matter, phosphate, nitrate, nitrite, sulphates, total iron, COD (Chemical Oxygen Demand) were measured in the laboratory by the colorimetric method. Stata 15 software was applied for the statistical analysis of the data and the correlation test between the parameters gave highly significant correlations. It has been noted that the situation is not very good and that this pollution comes mainly from human activities.
KEYWORDS
Surface water, physico-chemical parameters, Lake Sonfonia, anthropogenic, eutrophication.
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