%0 Journal Article %T A Rational Relationship between the Water Quality of a Water Body and the Quality of Discharged Wastewater %A Chernikov, N.A. %A Kudryavcev, A.V. %K Water quality of water bodies, watercourses, water users, water purity index, concentration of pollutants, environmental efficiency indicator, maximum permissible discharge, financing of water protection measures %J Proceedings of Petersburg Transport University %D 2023 %N 20 %P 9 %I FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"