title: [The regional characteristics of the hygienic evaluation of biological contamination of superficial waters].
abstract: The paper gives the data characterizing the specific features of formation of an anthropogenic load on water bodies in north regions; sanitary and hygienic criteria for estimating the biological contamination; and the factors that increase the biological productivity of the algal flora; a classification of eutrophic waters is also proposed.
authors.forename: L V
authors.initials: LV
authors.lastname: Vorob'eva
authors.forename: G F
authors.initials: GF
authors.lastname: Lutaĭ
authors.forename: I A
authors.initials: IA
authors.lastname: Kuznetsova
authors.forename: I O
authors.initials: IO
authors.lastname: Miasnikov
authors.forename: G I
authors.initials: GI
authors.lastname: Chernova
authors.forename: E A
authors.initials: EA
authors.lastname: Rad'kova
authors.forename: A E
authors.initials: AE
authors.lastname: Oparin
mesh_terms: D057919:Biological Oxygen Demand Analysis; D004784:Environmental Monitoring; D005068:Eutrophication; D005618:Fresh Water / Q000032:analysis / Q000382:microbiology*; D006920:Hygiene / Q000592:standards*; D012426:Russia; D014871:Water Microbiology / Q000592:standards*; D014873:Water Pollutants / Q000032:analysis*; D014881:Water Supply / Q000592:standards*
chemical_list: D014873:Water Pollutants