References
- Donderski W., Wilk I., 2002, The sanitary state of water in the River Vistula between Wyszogród and Toruń, Pol. J. Environ. Stud., 5: 509-15
- EN ISO (European Standard implemended ISO), 1990, Water quality. Sampling; Part 6: Guidance on sampling of rivers and streamers, European Comitee for Standarization, Belgium, Bruxelles, EN ISO 5667-6
- EN ISO (European Standard implemended ISO), 1999, Water quality. Enumaration of viable microorganisms — Colony count by inoculation in or on a nutrient agar culture medium, European Comitee for Standarization, Belgium, Bruxelles, EN ISO 6222: 1999(E)
- EN ISO (European Standard implemended ISO), 2000, Water quality. Detection and enumeration of intestinal enterococci. Part 2: Membrane filtration method, European Comitee for Standarization, Belgium, Bruxelles, EN ISO 7899-2
- Galvin R. M., Mellado J. M. R., 1995, Pollution in four tributaries of the Guadalquivir River in Cordoba County, Spain, Eur. Water Poll. Contr., 1: 14-18
- Geldreich E. E., 1997, Coliforms: A new beginning to an old problem. [in:] E. E. Geldreich (ed.), Coliforms and Escherichia coli. Problems or solutions?, Athenaeum Press, London, pp.140-62
- Gołębiowska K., Niespodziewny A., Reczek T., 1994, Methodological guardlines for projecting of regional monitoring of surface waters. Oficyna Wyadwnicza "OIKOS" Sp. z o.o., Warszawa, pp. 237, (in Polish)
- Koivunen J., Siitonen A., Heinonen-Tanski H., 2003, Elimination of enteric bacteria in biological-chemical wastewater treatment and tertiary filtration units, Water Res. 37: 690-98
- Moe C. L., 1997, Waterborne transmission of infectious agents. [in:] C. J. Hurst G. R. Knudsen M. J. McInerney L. D. Stetzenbach M. V. Walter (ed.), Manual of environmental microbiology, American Society for Microbiology Press, Washington, pp. 435
- Niewolak S., 1998, The evaluation of the contamination degree and the sanitary and bacteriological state of the waters in the Czarna Hańcza River in the region of Suwałki and Wigry National Park, Pol. J. Environ. Stud., 7: 229-41
- Omura T., Onmura M., Aizawa J., Umita T., Yagi T. 1989, Removal efficiencies of indicator micro-organisms in sewage treatment plants.Wat. Sci. Technol., 21: 119-124
- Reinheimer G., 1992, Aquatic microbiology, Wiley, London, pp. 271
- Rose J. B., Dickson L. J., Farrah S. R., Carnahan R. P., 1996, Removal of pathogenic and indicator microorganisms by full-scale water reclamation facility, Water Res. 30: 2785-97
- Starmach K., 1976, Rivers. Object of hydrobiology [in:] K. Starmach S. Wróbel K. Pasternak (ed.), Hydrobiology. Limnology, PWN, Warszawa, pp. 125-59, (in Polish)
- WIOŚ (Wojewódzki Inspektorat Ochrony Środowiska), 2000, Report on the state of the environment in the Kujawsko-Pomorskie district in 1999, Biblioteka Monitoringu Środowiska, Bydgoszcz, pp. 283, (in Polish)
- Arvanitidou M., Kanellou K., Katsouyannopoulos V., Tsakris A., 2002, Occurance and densities of fungi northern Greek coastal bathing waters and their relation with faecal pollution indicators, Water Res., 36: 5127-31