Concerns arise from the possible occurrence of pathogens in drinking water pipe biofilms and storage tank sediments. In these studies, biofilm samples from pipes and sediments from storage tanks of the Lisbon drinking water distribution system were analyzed. Protein determinations and heterotrophic counts on pipe biofilm samples were used to assess the Lisbon network sessile colonization intensity and distribution. Indicator and pathogenic microorganisms were analyzed in pipe biofilm samples, as well as in storage tanks biofilm and sediments, by using cultural methods and PCR, to assess risks. Results have shown that the Lisbon network sessile colonization is relatively weak in intensity. In addition, no meaningful hazards were apparent for both the network biofilm and the storage tanks biofilm and sediments.
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Research Article|
October 01 2008
Assessment of Lisbon drinking water distribution network biofilm colonization and associated hazards Available to Purchase
J. Menaia;
1Urban Water Division, National Civil Engineering Laboratory, Department of Hydraulics & Environment, Av. Brasil, 101, 1700-066 Lisboa, Portugal E-mail: [email protected]; [email protected]; [email protected]
E-mail: [email protected]
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M. Benoliel;
M. Benoliel
2Empresa Portuguesa das Águas Livres, Rua do Alviela, 12, Calçada dos Barbadinhos, 1170-012 Lisboa, Portugal E-mail: [email protected]; [email protected]; [email protected]
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A. Lopes;
A. Lopes
1Urban Water Division, National Civil Engineering Laboratory, Department of Hydraulics & Environment, Av. Brasil, 101, 1700-066 Lisboa, Portugal E-mail: [email protected]; [email protected]; [email protected]
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C. Neto;
C. Neto
2Empresa Portuguesa das Águas Livres, Rua do Alviela, 12, Calçada dos Barbadinhos, 1170-012 Lisboa, Portugal E-mail: [email protected]; [email protected]; [email protected]
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E. Ferreira;
E. Ferreira
2Empresa Portuguesa das Águas Livres, Rua do Alviela, 12, Calçada dos Barbadinhos, 1170-012 Lisboa, Portugal E-mail: [email protected]; [email protected]; [email protected]
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E. Mesquita;
E. Mesquita
1Urban Water Division, National Civil Engineering Laboratory, Department of Hydraulics & Environment, Av. Brasil, 101, 1700-066 Lisboa, Portugal E-mail: [email protected]; [email protected]; [email protected]
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J. Paiva
J. Paiva
2Empresa Portuguesa das Águas Livres, Rua do Alviela, 12, Calçada dos Barbadinhos, 1170-012 Lisboa, Portugal E-mail: [email protected]; [email protected]; [email protected]
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Water Supply (2008) 8 (4): 421–426.
Citation
J. Menaia, M. Benoliel, A. Lopes, C. Neto, E. Ferreira, E. Mesquita, J. Paiva; Assessment of Lisbon drinking water distribution network biofilm colonization and associated hazards. Water Supply 1 October 2008; 8 (4): 421–426. doi: https://doi.org/10.2166/ws.2008.103
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