Assessing Microbial Safety of Drinking Waters: Perspectives by Organisation for Economic Co-Operation and Development

By Organisation for Economic Co-Operation and Development

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Extra resources for Assessing Microbial Safety of Drinking Waters: Perspectives for Improved Approaches and Methods

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A sub-group of the faecal streptococci, which is relatively tolerant of sodium chloride and alkaline pH, have been grouped under the genus Enterococcus. Most of the Enterococcus species are of faecal origin and can generally be regarded as specific indices of human faecal pollution for most practical purposes. Faecal streptococci are more resistant to stress and chlorination than E. coli and the other coliform bacteria. Although both faecal streptococci and enterococci remain in use as monitoring parameters in drinking water, enterococci appear likely to supplant faecal streptococci as the parameter of choice as they are clearly of faecal origin from warm blooded animals.

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