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MICROBIAL QUALITY CONTROL OF NIGER RIVER WATER IN URBAN AND PERI-URBAN AREAS OF BAMAKO
Yacouba Koumaré, Amadou Hamadoun Babana*, Kangaye Amadou Diallo, Fallaye Kanté and Fassé Samaké
Rivers are the most important freshwater resource for humans. However, because of the high density of populations, the growth and concentration of industrial centers on the banks of rivers favor the pollution of these rivers. Anything that presents a serious threat to human health. In Mali, the Bamako District is one of the major cities, whose water supply is mainly based on the Niger River. Unfortunately, in this city and its surroundings, this river receives a large amount of waste and untreated wastewater, which are likely to degrade the quality of its water, hence the need to regularly monitor the quality of this in the context of sustainable management of this resource. This study aimed to determine the water quality of the Niger River in Bamako and its immediate surroundings (Samaya, Ecole Normale Supérieure (ENSup), Martyrs Bridge and Moribabougou). Specifically, it was intended to (i) quantify the faecal coliforms contained in the water of the Niger River by the most probable number (MPN) method and (ii) determine the physicochemical parameters of the Niger River water, based on international standards established by ISO 7899-1. Results show that the water of the Niger River is heavily polluted in Bamako and in some areas of this city. Indeed, fecal coliforms have found in the water of the river, in particular at ENSup and the Martyrs' Bridge and the defined norm is very strongly exceeded several times. Similarly, nitrates (NO3-) have been encountered for a concentration exceeding the allowed standard.[Full Text Article]