Determination of the Physico-Chemical Quality of the Waters of the Mamouwol River in the Urban Commune of Mamou, Republic of Guinea

Water is one of the most important elements on which our daily lives depend, because of its many uses in various fields. To ensure that people have the right of access to water, the authorities must provide them with treated water that complies with the regulations and standards in force, particularly from a physico-chemical point of view, for all possible uses to avoid any health problems for consumers. The aim of this research is to study the water in the Mamouwol River by measuring physico-chemical parameters: (1) pH, it varies from 5.2 “Mam3” to 7.8 “Mam4” in August 2021 then from 5.5 “Mam3” to 7.7 “Mam4” in March 2022, i.e. an average of 6.9 for all sampling points; (2) Turbidity varies from 0.3 NTU “Mam1” to 26.3 NTU “Mam4” in August 2021, then from 0.3 NTU “Mam1” to 30.6 NTU “Mam4” in March 2022, i.e. an average of 9.0 NTU for all sampling points; (3) Suspended matter, varying from 0.6 mg/L “Mam1” to 17.6 mg/L “Mam4” in August 2021, then from 0.6 mg/L “Mam1” to 30.0 mg/L “Mam4” in March 2022, i.e. an average of 8.8 mg/L for all the sampling points “Mam1”, “Mam2”, “Mam3” and “Mam4”; (4) Dissolved oxygen, varying from 2.07 mg/L “Mam3” to 6.12 mg/L “Mam1” in August 2021, then from 1.05 mg/L “Mam3” to 5.05 mg/L “Mam1” in March 2022, i.e. an average of 2.77 mg/L for all sampling points; (5) Nitrates vary from 1.32 mg/L “Mam1” to 3.96 mg/L “Mam4” in August 2021, then from 1.49 mg/L “Mam1” to 5.27 mg/L “Mam3” in March 2022, i.e. an average of 5.53 mg/L for all sampling points; (6) Nitrites, varying from 0 mg/L “Mam1’ and “Mam2” to 0.06 mg/L “Mam3” in August 2021, then from 0 mg/L “Mam1” and “Mam2” to 0.13 mg/L “Mam3” in March 2022, i.e. an average of 0.03 mg/L for all sampling points. The results show the presence of organic pollution.