Chapter 10 - MICROBIOLOGICAL ANALYSES

water Quality Monitoring - A Practical Guide to the Design and Implementation of Freshwater Quality Studies and Monitoring Programmes Edited by Jamie Bartram and Richard Ballance Published on behalf of United Nations Environment Programme and the World Health Organization 1996 UNEP/WHO. ISBN 0 419 22320 7 (Hbk) 0 419 21730 4 (Pbk). Chapter 10 - MICROBIOLOGICAL ANALYSES . This Chapter was prepared by J. Bartram and S. Pedley The discharge of wastes from municipal sewers is one of the most important water quality issues world-wide. It is of particular significance to sources of drinking- water . Municipal sewage contains human faeces and water contaminated with these effluents may contain pathogenic (disease-causing) organisms and, consequently, may be hazardous to human health if used as drinking- water or in food preparation. Faecal contamination of water is routinely detected by MICROBIOLOGICAL analysis.

• For samples of drinking-water, one tube with 50 ml of sample and five tubes with 10 ml of sample are inoculated and incubated. The results are compared with the values such as those given in Table 10.7 (see later) to obtain the MPN. 10.3.1 Culture media and buffered dilution water Each part of the test requires a different type of medium.

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  Water, Dilution, Buffered, Buffered dilution water

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