title: [Hygienic quality of lakes which are used as open-air bath. I. Communication: seasonal variation of total colony count, the number of Escherichia coli and coliforms (author's transl)].
abstract: Four lakes situated in the recultivated area of the Rhenish brown-coal district were examined bacteriologically during a period of one year. Total colony count and the number of Escherichia coli and coliforms were determined and compared with the influence of meteorological factors and human and animal impacts.
mesh_terms: D000818:Animals; D001431:Bacteriological Techniques; D001493:Bathing Beaches / Q000592:standards*; D004755:Enterobacteriaceae / Q000254:growth & development; D004926:Escherichia coli / Q000254:growth & development*; D005618:Fresh Water / Q000032:analysis*; D005860:Germany, West; D006801:Humans; D014867:Water / Q000032:analysis*; D014871:Water Microbiology
chemical_list: D014867:Water
vernacular_title: Zur hygienischen Beschaffenheit von Kreibadgewässern. I. Mitteilung: Jahreszeitliche Schwankungen der Koloniezahl, der Zahl an Escherichia coli und Koliformen.