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| Pereira, Vitor Matheus Galdino; Universidade Federal do Ceará; Gomes, Raimundo Bemvindo; Centro Federal de Educação Tecnológica do Estado do Ceará - CEFETCE; Sá, Marcelo Vinícius do Carmo e; UFC. |
| The present work examined possible relationship between the Escherichia coli counts and the concentrations of free CO2, dissolved oxygen, reactive phosphorus, total ammonia, nitrite, pH, transparency and electric conductivity in water samples from the Lagoa da Maraponga (Fortaleza, Ceará State). Eight samplings were carried out every fifteen days to take samples under the water’s surface at three sampling stations. Regression analyses were performed with the variable with the greatest Pearson coefficients searching for the best fitted curve to observed data. The correlation between the water pH and E. coli was best represented by the equation ŷ = 7.63 – 2.92 * 10-4 x (r² = 0.53; P = 0.06) where x is the E. coli count (MPN 100 mL-1) and y is the... |
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Palavras-chave: Ecologia de ecossistemas urbanos Eutrophication; Fecal coliforms; PH; Urban lakes Limnologia Eutrophication; Fecal coliforms; PH; Urban lakes. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/7842 |
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| Oliveira-Filho, Eduardo Cyrino; Embrapa Cerrados; Ramos, Marianni Gonçalves; Centro Universitário de Brasília - UniCEUB; Freire, Ingrid Souza; Centro Universitário de Brasília - UniCEUB; Muniz, Daphne Heloisa de Freitas; Embrapa Cerrados. |
| This study evaluated the efficiency of two bioindicators, fecal coliforms and ecotoxicity tests, set out in CONAMA Resolution 274/00 and CONAMA Resolution 357/05, in assessment of water quality. For this study, Lake Paranoá, Federal District of Brazil, was chosen, since it is a water body directly contaminated by effluents from a sewage treatment plant. Four sampling points were chosen in accordance with the map of recreational water quality published weekly by CAESB/DF, after analysis of fecal coliforms. Samples from these points were collected for 6 months and tested on Danio rerio fish (acute toxicity) and on the microcrustacean Ceriodaphnia dubia (acute and chronic toxicity), besides measuring chemical and physico-chemical parameters. The data obtained... |
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Palavras-chave: 2.00.00.00-6 water quality; Ecotoxicity tests; Fecal coliforms; Paranoá lake; Recreational water; Safety 2.00.00.00-6 water quality; Ecotoxicity tests; Fecal coliforms; Paranoá lake; Recreational water; Safety. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/7725 |
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| Higuti,Ilma Hiroko; Macena,Ivone Rodrigues; Masunari,Setuko; Branco Filho,Mario de Oliveira; Blaskowiski,Marita Maciel Moreira; Nascimento,Aguinaldo José do. |
| The Perequê and Penedo rivers flow through the plains of Praia de Leste and fall into the sea between the municipalities of Pontal do Sul and Ponta do Poço. Both of these rivers belong to the sub-basin of Paranaguá Bay, and are constituent parts of the hydrographic basin of the Atlantic Ocean (State of Paraná). Four sites along the Perequê River (Stations 1-4) and one along the Penedo River (Station 5) were monitorated for water pollution over a 12-month period. During the period of December 1995 to November 1996, three water samples were collected from each site, placed in sterilized bottles and transported to the laboratory in ice-boxes. They were analyzed for the occurrence of total and fecal coliforms, temperature and pH. Fecal pollution was detected... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Total coliforms; Fecal coliforms; Water microbiology. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000400005 |
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| Miossec, Laurence; Le Guyader, Soizick; Haugarreau, Larissa; Comps, Marie-annick; Pommepuy, Monique. |
| Several outbreaks of gastroenteritis related to the consumption of shellfish (frequently eaten raw) have been reported in different parts of the world. In Europe, hum an calicivirus infections may have been involved in winter outbreaks in recent years, although there is little evidence confirming such viral contamination in shellfish. This study presents the first results of a field survey on viral contamination in two shelllish harvesting areas along the French Mediterranean coast. The first, consisting mainly of oyster beds, was c1assified in category A, as determined by fecal coliform counts in shellfish (European Community Directive 91/492), and the second, a mussel bed, was c1assified in category C. Shelllish samples were collected monthly between... |
| Tipo: Text |
Palavras-chave: Shellfish; Viral contamination; Enterovirus; Human calicivirus; Rotavirus; Astrovirus; Fecal coliforms; Gastroenteritis. |
| Ano: 1998 |
URL: https://archimer.ifremer.fr/doc/00001/11257/7802.pdf |
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