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dc.date.accessioned 2010-10-26T18:06:30Z
dc.date.available 2010-10-26T03:00:00Z
dc.date.issued 2010
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/5513
dc.description.abstract The objective of this study was to evaluate the influencing factors in the occurrence of coliforms in the drinking water in La Plata (Argentina) from June 1999 to June 2001. A total of 180 samples were collected from Rio de La Plata (102 samples) and Puelche Aquifer (78 samples); 45 samples were collected for each of the four seasons. The membrane filter procedure was used for isolating bacteria, and each sample was tested for chlorine and pH. The highest percentage of samples positive for coliforms in the two tested media was obtained in summer while the highest percentage of negative samples was obtained in winter. No Escherichia coli was isolated. The percentage of injured coliforms fluctuated between 70 and 100%. The most frequently isolated bacteria was Enterobacter cloacae in summer, Enterobacter agglomerans in autumn and Klebsiella oxytoca in winter and spring. Significant correlations were observed between coliforms and the distance from the initial treatment point, and with the level of free chlorine. We conclude that drinking water contamination in La Plata occurs in the distribution system due to increased temperatures and reduced disinfectant levels, which result in bacterial regrowth. en
dc.format.extent 205-211 es
dc.language en es
dc.subject La Plata (Buenos Aires, Argentina) es
dc.subject Agua Potable es
dc.subject Calidad del Agua es
dc.subject Parasitología es
dc.title Influencing factors in the occurrence of injured coliforms in the drinking water distribution system in the city of La Plata, Argentina en
dc.type Articulo es
sedici.identifier.other https://doi.org/10.2166/wh.2009.141 es
sedici.identifier.issn 1477-8920 es
sedici.creator.person Córdoba, María Alejandra es
sedici.creator.person Del Coco, Valeria Fernanda es
sedici.creator.person Minvielle, Marta Cecilia es
sedici.creator.person Basualdo Farjat, Juan Ángel es
sedici.subject.materias Ciencias Médicas es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Médicas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici2003.identifier ARG-UNLP-ART-0000006755 es
sedici.relation.journalTitle Journal of Water and Health es
sedici.relation.journalVolumeAndIssue vol. 8, no. 2 es

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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)