Physicochemical and bacteriological characteristics of water - Arcier watershed - 2020-2022

Physical characteristics, major ions, minor ions, trace elements measured from May 2020 to February 2022 in five sites of the Arcier karst watershed (Doubs, France), as well as at the Arcier spring. These measurements were complemented by the acquisition of extended spectrum beta-lactamase (ESBL)-producing Escherichia coli concentrations. These bacterial strains are resistant to 3rd generation cephalosporins, an antibiotic widely used in human medicine. Antibiotic resistance is a major public health problem and its environmental dispersion must be characterized. The sequences of the 129 ESBL-producing Escherichia coli isolates are available on NCBI: BioProject 890617.