Bacteriological analysis of water used for human consumption at Sítio Bela Vista, Barbalha - CE

• Autor(a) principal: Saraiva, Maria Danyelle Coêlho
• Data de Publicação: 2020
• Outros Autores: Paixão, Letícia Araújo da, Silva, Maryna Araújo da, Fernandes, Morgana Braga, Silva, Thaylon Menezes Ferreira da, Aquino, Pedro Everson Alexandre de, Silva, Rakel Olinda Macedo da
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Saúde (Santa Maria)
• Texto Completo: https://periodicos.ufsm.br/revistasaude/article/view/42354
• topic: Water; Total coliforms; Contamination; Escherichia. coli.; Água; Coliformes totais; Contaminação; Escherichia. coli.

The study aimed to carry out bacteriological analysis of the water used for human consumption at Sítio Bela Vista in the city of Barbalha, Ceará, to evaluate the presence of total coliforms and Escherichia coli in the samples, as well as the hygienic-sanitary conditions close to the spring. Three collections were made in sterile borosilicate glass flasks with an interval of eight days between them, from the spring, from the water tank of distribution and from 4 random residences, thus totaling 18 samples. The analysis was performed using the chromogenic and fluorogenic substrate method, which consists of adding the contents of a flacon containing these substrates to the flasks that were closed and then vigorously shaken and incubated in an oven at 35 ° C for 24 hours, performing reading against normal light and ultraviolet light. A checklist was also applied which addressed issues related to the contamination of the region close to the source. The results obtained for total coliforms were not satisfactory, being present in 100% of the samples. In relation to E. coli, it was present in 33.3% of the samples analyzed, and these results may then be related to the presence of contaminants near the source and the lack of hygiene in the water tanks and taps in the homes. In view of these results, according to Ordinance No. 2,914 of the Ministry of Health, water is unsuitable for human consumption and that is why it is extremely important to create public policies that reinforce the relevance and need to clean water tanks. and taps in homes.