Heterotrophic Plate Counts and Drinking-water Safety The Significance of HPCs for Water Quality and Human Health

Heterotrophic Plate Counts and Drinking-water Safety The Significance of HPCs for Water Quality and Human Health

eBook - 2014
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Heterotrophic Plate Counts and Drinking-water Safety provides a critical assessment of the role of the Heterotrophic Plate Count (HPC) measurement in drinking water quality management. It was developed from an Expert workshop of 32 scientists convened by the World Health Organization and the WHO/NSF International Collaborating Centre for Drinking Water Safety and Treatment in Geneva, Switzerland. Heterotrophs are organisms, including bacteria, yeasts and moulds, that require an external source of organic carbon for growth. The HPC test (or Standard Plate Count), applied in many variants, is the internationally accepted test for measuring the hetrotrophic microorganism population in drinking water, and also other media. It measures only a fraction of the microorganisms actually present and does not distinguish between pathogens and non-pathogens. High levels of microbial growth can affect the taste and odor of drinking water and may indicate the presence of nutrients and biofilms which could harbor pathogens, as well as the possibility that some event has interfered with the normal production of the drinking water. HPC counts also routinely increase in water that has been treated by an in-line device such as a carbon filter or softener, in water-dispensing devices and in bottled waters and indeed in all water that has suitable nutrients, does not have a residual disinfectant, and is kept under sufficient conditions.
Publisher: [Place of publication not identified] : Iwa Publishing, 2014
ISBN: 9781780405940
Branch Call Number: Freading ebook
Characteristics: 1 online resource (272 pages)
Additional Contributors: Bartrum, J.
Freading (Firm)

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