Avaliação parasitológica, microbiológica e físico-química da água destinada ao consumo humano em um município de tríplice fronteira - Brasil, Paraguai e Argentina
| Ano de defesa: | 2019 |
|---|---|
| Autor(a) principal: |
Scherer, Gustavo Strieder
 |
| Orientador(a): |
Moreira, Neide Martins
|
| Banca de defesa: |
Zilly, Adriana
,
Svoboda, Walfrido Kuhl
|
| Tipo de documento: | Dissertação |
| Tipo de acesso: | Acesso aberto |
| Idioma: | por |
| Instituição de defesa: |
Universidade Estadual do Oeste do Paraná
Foz do Iguaçu |
| Programa de Pós-Graduação: |
Programa de Pós-Graduação em Saúde Pública em Região de Fronteira
|
| Departamento: |
Centro de Educação Letras e Saúde
|
| País: |
Brasil
|
| Palavras-chave em Português: | |
| Palavras-chave em Inglês: | |
| Palavras-chave em Espanhol: | |
| Área do conhecimento CNPq: | |
| Link de acesso: | http://tede.unioeste.br/handle/tede/4432 |
Resumo: | Water is indispensable for the survival of the human, with wide distribution and easy access makes it one of the main vehicles of pathogens in the population. As an attempt to guarantee primary health care, it is recommended the research of parasites, bacteria and determination of physico-chemical parameters to search the water quality standards to be consumed. The protozoa Cryptosporidium spp. and Giardia spp. have the capacity to withstand conventional water treatment, presenting a risk due to the presence and concern of the sanitary authorities and companies responsible for the supply of water for human consumption. The objective of this study was to evaluate the quality of water intended for human consumption in a triple border region before and after treatment by two water treatment (ETA) and in six municipal infant education centers (CMEI) regarding parasitological, microbiological and physicochemical aspects. The monitoring of raw water (2 sources n = 12 samples) treated – ETA (n = 2/12 samples) and CMEI (n = 6/36 samples), 60 samples in total, for the investigation of Giardia and Cryptosporidium, microbiological indicators, Pseudomonas aeruginosa, antimicrobial resistance profile and other physicochemical parameters were conducted using conventional microbiological and parasitological techniques and immunodiagnostic from November 2017 to April 2018 in Foz do Iguaçu. The results obtained were compared with the reference values recommended by the current water legislation for human consumption in Brazil. The results evidenced contamination by protozoa in 11.6% (7/60) of the analyzed samples. Of this total, the presence of Giardia spp. was detected in 57.1% (4/7) samples and Cryptosporidium spp in 42.9% (3/7) samples. Giardia spp. and Cryptosporidium spp. were identified in 8.3% of the ETA treated water samples and Giardia cysts in 2.8% of the CMEI water samples. For raw water, 33.0% (4/12) were positive for at least one of the protozoa. The analysis of treated water for indicator bacteria and Pseudonomas aeruginosa revealed contamination in a small fraction of samples. The results demonstrated for the first time the contamination and the ubiquity of Cryptosporidium and Giardia in the main sources for water supply and treatment in an important tourist region of Brazil and the impact of fecal contamination on the treated water destined for human consumption. The need to carry out the systematic monitoring of pathogens in raw water and especially in treated water to protect public health is emphasized. |