| Congresso Brasileiro de Microbiologia 2023 | Resumo: 577-2 | ||||
Resumo:Water is an essential element for the survival of all living organisms. It is also susceptible to several forms of contamination, which may result in the occurrence of waterborne diseases. Hence, it is crucial to ensure that all water intended for human consumption is potable, that is, free of contaminants. In Brazil, the bacteriological standards for potable water are outlined in Ordinance GM/MS No. 888 from May 4th, 2021. According to this ordinance, water samples must demonstrate the absence of total coliforms and Escherichia coli in a 100 mL sample. The present study aimed to carry out a descriptive analysis of the bacteriological quality of water intended for human consumption in Brazil, drawing upon a comprehensive review of scientific articles on this topic. To achieve this, an extensive search was performed in databases such as Google Scholar, SciELO, and Web of Science. A total of 128 articles addressing the bacteriological quality of water intended for human consumption, published between 2000 and 2022, were included in this study. Combined, these articles encompassed an analysis of 4,057 water samples. Among these samples, 2,291 (56.5%) were from treated water and 1,766 (43.5%) from untreated water. Sources of water samples included drinking fountains (17.4%), shallow wells (14%), educational establishments (14%), artesian wells (12.4%) and water supply systems (11.2%). In terms of bacteriological quality, among the 2,291 treated water samples, 484 (21%) tested positive for total coliforms, and 179 (8%) for E. coli. Regarding the 1,766 untreated water samples, 1,066 (60%) were positive for total coliforms, and 522 (29.5%) for E. coli. These findings highlight the importance of treating water for human consumption to prevent it from becoming a source of waterborne diseases. Moreover, they emphasize the need for effective control measures to prevent the contamination of treated water and ensure the provision of safe and clean drinking water, contributing to the promotion of public health.
Palavras-chave: bacteriological potability, drinking water, microbial contamination Agência de fomento:FAPESP (#2013/07914-8) and PUB-USP (#2022/ 3467) | |||||