GUESSOUM, Hadjer2023-03-222023-03-222013https://dspace.univ-ghardaia.edu.dz/xmlui/handle/123456789/5823The study of microbiological characterization of ground water in the valley of SEBSEB made on the basis of 30 samples, reveals a biological pollution that results in the presence of total bacteria at 22°C and at 37°C, total coliforms, fecal coliforms, Escherichia coli and streptococcus D, which makes the water unfit for human consumption by European and Algerian. The study of spatial variation of hydro-biological parameters shows a biological pollution gradient from upstream to downstream of the river.frNappe phréatique, microbiologie, normes, pollution, SEBSEBGroundwater, microbiology, standards, pollution, SEBSEB