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Abstract
The implementation of natural parks in cities is a current and controversial theme. Therefore, in Lake Buritis, which is a leisure area for the population of the city of Goiatuba, Goiás, Brazil, the quality of the water was analyzed, carrying out quantitative tests of the water samples at six different points between the source and the outlet of the lake that flows into the stream, Chico À Toa. Physical–chemical tests (turbidity, pH, alkalinity, electrical conductivity, color, nitrate and hardness parameters), microbiological tests for species identification, analysis of the antimicrobial susceptibility profile, metals analysis and Allium cepa test, were performed. The total coliforms number in water samples was higher than the maximum value established by Brazilian legislation, demonstrating high fecal contamination during the spring in samples from an artesian well. The bacterial diversity found was large and there were many pathogenic bacteria. The A. cepa test demonstrated a cytotoxic potential for water from the source and outlet of Buritis Lake. Statistical tests were applied to verify existing correlations between parameters. Among the analyzed data, the highest correlation was between the color and turbidity parameters and the grouping between the metals (lead, iron, cadmium and magnesium).
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Storto D, Nara LBC, Kozusny-Andreani DI, Vanzela LS, Mansano CFM, Bilal M, Iqbal HMN, Américo-Pinheiro JHP. Seasonal Dynamics of Microbial Contamination and Antibiotic Resistance in the Water at the Tietê Ecological Park, Brazil. WATER AIR AND SOIL POLLUTION 2021. [DOI: 10.1007/s11270-021-05207-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Moretto VT, Cordeiro SM, Bartley PS, Silva LK, Ponce-Terashima R, Reis MG, Blanton RE, Barbosa LM. Antimicrobial-resistant enterobacteria in surface waters with fecal contamination from urban and rural communities. Rev Soc Bras Med Trop 2021; 54:S0037-86822021000100631. [PMID: 33681934 PMCID: PMC8008923 DOI: 10.1590/0037-8682-0724-2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/15/2020] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION: Inadequate wastewater treatment and fecal contamination have a strong environmental impact on antimicrobial resistance (AMR). This study evaluated the profile of AMR enterobacteria and fecal contamination from four surface waters: Jiquiriça-Brejões River and Cabrito, Tororó, and Abaeté Lagoons. METHODS: We analyzed AMR β-lactamase genes using the polymerase chain reaction method and fecal contamination using Coliscan®. RESULTS: We found high levels of fecal contamination, β-lactamase producers, and AMR genes (blaOXA-48, blaSPM, and blaVIM) in all waterbodies. CONCLUSIONS: Poor sanitation evidenced by fecal contamination and human activities around these surface waters contributed to the distribution and increase in AMR enterobacteria.
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Affiliation(s)
- Vanessa Tibolla Moretto
- Fundação Oswaldo Cruz, Instituto Gonçalo Moniz, Laboratório de Patologia e Biologia Celular, Salvador, BA, Brasil
| | | | | | - Luciano Kalabric Silva
- Fundação Oswaldo Cruz, Instituto Gonçalo Moniz, Laboratório de Patologia e Biologia Celular, Salvador, BA, Brasil
| | - Rafael Ponce-Terashima
- Mercer University School of Medicine, Department of Medicine, Division of Infectious Diseases, Macon, Georgia, USA
| | - Mitermayer Galvão Reis
- Fundação Oswaldo Cruz, Instituto Gonçalo Moniz, Laboratório de Patologia e Biologia Celular, Salvador, BA, Brasil.,Universidade Federal da Bahia, Faculdade de Medicina, Salvador, BA, Brasil.,Yale University, School of Public Health, Department of Epidemiology of Microbial Diseases, New Haven, Connecticut, USA
| | - Ronald Edward Blanton
- Tulane University School of Public Health and Tropical Medicine, Department of Tropical Medicine, New Orleans, LA 70112, USA
| | - Lúcio Macedo Barbosa
- Fundação Oswaldo Cruz, Instituto Gonçalo Moniz, Laboratório de Patologia e Biologia Celular, Salvador, BA, Brasil.,Escola Bahiana de Medicina e Saúde Pública, Salvador, BA, Brasil
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