Argentina / Wastewater Treatment / Environmental Monitoring / Rivers / Multidisciplinary / Cities / Heavy metals / Heavy Metal Pollution / Heavy Metal / Pseudomonas Fluorescens / Pseudomonas putida / Environmental monitoring and assessment / Water Microbiology / Environmental / Urban Land Use / Cities / Heavy metals / Heavy Metal Pollution / Heavy Metal / Pseudomonas Fluorescens / Pseudomonas putida / Environmental monitoring and assessment / Water Microbiology / Environmental / Urban Land Use