2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/83422A flotational mechanism of Etobicoke Creek's self-purification has been investigated. It is shown that the froth contains a high concentration of polluting agents. Chemical analyses of the top layer of surface water in comparison to both before and after froth collector in the course of a year are provided. As a result, the concentrations of pollutants by utilizing the model froth collector are decreased.20 pages, 22 Graphs, 6 Tables, 19 ReferencesChemical Physicstext