VARIABILITY OF SELECTED PHYSICO-CHEMICAL PARAMETERS OF WATER IN THE SŁUPSKO RESERVOIR

Aim of the study: The aim study was to evaluate changes in concentration selected ions waters Słupsko dam reservoir and determine its role as a "primary sedimentation tank" for Pławniowice reservoir. Material methods: Determination factors causing these made on basis measuring number physical chemical parameters between March 2019 February 2020. research carried out terms checking potential unfavorable phenomena surface water whether fulfills assumed role, i.e. function "initial settler" Reservoir. Results conclusions: contributes only small extent equalization analyzed ions' concentrations . It is difficult explain lack clear relationship sodium ion conductivity. High orthophosphate summer may suggest that reservoir's canopy enriched with this element internally summer. orthophosphates at inflow indicate insufficiently treated municipal sewage or runoff from agricultural areas. plays marginal "preliminary short time retention does not allow removal nutrients it. Currently, source Therefore, it seems necessary constantly monitor quality