Assessment of the marker value of various components of the coli-aerogenes group of enterobacteriaceae and of a selection of Enterococcus spp. for the official monitoring of drinking water supplies.
The traditional indicators Escherichia coli (in practice currently, though ecologically inaccurately, represented by « thermotolerant coliforms » at 44oC) and Enterococcus spp. proved to be suitable for the diagnosis of heavy and frequent faecal pollution observed in potentially dangerous waters, especially those originating from karstic aquifers.
On the other hand, natural and treated waters, slightly and inconsistently contaminated, occasionally showed a variable Gram-negative flora, difficult to classify by routine tests.
In that case, complete identification of isolates may be necessary to ensure a valid decision on the potability of the supply.
Mots-clés Pascal : Indicateur biologique, Diagnostic, Pollution eau, Eau potable, Fèces, Coliforme, Méthode, Enterococcus, Escherichia coli, Pathogène, France, Streptococcaceae, Micrococcales, Bactérie, Enterobacteriaceae, Europe
Mots-clés Pascal anglais : Biological indicator, Diagnosis, Water pollution, Drinking water, Feces, Coliforms, Method, Enterococcus, Escherichia coli, Pathogenic, France, Streptococcaceae, Micrococcales, Bacteria, Enterobacteriaceae, Europe
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 94-0315421
Code Inist : 002B30A02A. Création : 199406.