Water quality in two schools in Ciudad del Este
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Keywords

Coliforms
Escherichia coli infections
public health
water pollution
water quality

How to Cite

Water quality in two schools in Ciudad del Este. (2025). Revista De Investigación Científica Y Tecnológica, 9(1), 6-16. https://doi.org/10.36003/Rev.investig.cient.tecnol.V9N1(2025)1

Abstract

Introduction: Water is essential for human development. It plays a fundamental role in the well-being of the population by determining both physical health and mental development. Objectives: To verify the potability of water in educational institutions in the San Miguel neighborhood in 2023. Methodology: This study was carried out using a descriptive quantitative approach, with a cross-sectional design (during the second semester of 2023) and deductive analysis logic, contrasting water quality parameters with established health standards. The sample included two educational institutions in Ciudad del Este: San Francisco School (Remancito neighborhood) and Nuestra Señora de Lourdes School (San Miguel neighborhood), selected due to their dependence on unregulated water sources. Results: At Nuestra Señora de Lourdes School, the pH was 5.51 (4.00 to 9.00). Nitrite (N-NO2) 0.013, Total Coliforms 54, Total Aerobic Mesophilic MNPC, Escherichia coli 4. San Francisco School pH 6.58, Nitrite (N-NO2, Up to 0.1) Less than 0.02, Total Coliforms 6, Total Aerobic Mesophilic 24. Conclusion: Cytological analysis revealed the presence of total and fecal coliforms in both samples, being notably high in "Nuestra Señora de Lourdes," where Escherichia coli was also detected. This bacteriological contamination is indicative of microbiological risk, which compromises the quality and safety of water for human consumption.

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References

Ahmed, W., Hamilton, K. A., &Toze, S. (2022). Emerging pathogens in the environment: Necessity for a global environmental surveillance. Journal of Water and Health, 20(3), 321-334. https://doi.org/10.2166/wh.2022.001

Barbosa, L. S., Morais, L. M., & Pereira, M. E. (2023). Water quality in schools: Assessing risks and proposing solutions. Environmental Health Perspectives, 131(4), 421-429. https://doi.org/10.1289/EHP9452

Bick, S., Davies, K., Mwenge, M., MacLeod, C., Braun, L., Chipungu, J., Chidziwisano, K., &Dreibelbis, R. (2025). WASH and learn: a scoping review of health, education and gender equity outcomes of school-based water, sanitation and hygiene in low-income and middle-income countries. BMJ Global Health, 10(5). https://doi.org/10.1136/bmjgh-2024-018059

Brumfield, K. D., Hasan, N. A., Leddy, M. B., Cotruvo, J. A., Rashed, S. M., Colwell, R. R., &Huq, A. (2020). A comparative analysis of drinking water employing metagenomics. PloS One, 15(4), e0231210. https://doi.org/10.1371/journal.pone.0231210

Castillo, M. F., Carrera, D. S., Veliz, L. A., &Souto, D. V. (n.d.). Prevalence and risk factors associated with intestinal parasitism in children. Ciego de Avila, 2023. Sld.Cu. Retrieved May 29, 2025, from http://scielo.sld.cu/pdf/ms/v22n4/1727-897X-ms-22-04-e709.pdf

Chique, C., Hynds, P. D., Andrade, L., Burke, L., Morris, D., Ryan, M. P., &O'Dwyer, J. (2020). Cryptosporidium spp. in groundwater supplies intended for human consumption A descriptive review of global prevalence, risk factors, and knowledge gaps. Water Research, 176, 115726. https://doi.org/10.1016/j.watres.2020.115726

Clairmont, L. K., Coristine, A., Stevens, K. J., &Slawson, R. M. (2021). Factors influencing the persistence of enteropathogenic bacteria in wetland habitats and implications for water quality. Journal of Applied Microbiology, 131(1), 513-526.https://doi.org/10.111/jam.1

Corte López, A., Sánchez Duarte, N. E., &Pallanez Murrieta, M. (2025). Diagnóstico de educación ambiental en alumnos de nivel universitario en Sonora y Tamaulipas México. Conocimiento global, 10(1), 96-110. https://doi.org/10.70165/cglobal.v10i1.542

Costa, C. M. da S. B., Leite, I. R., Almeida, A. K., & de Almeida, I. K. (2021). Choosing an appropriate water quality model-a review. Environmental Monitoring and Assessment, 193(1), 38. https://doi.org/10.1007/s10661-020-08786-1

De-la-Torre-Fiallos, A. V., Pacha-Jara, A. G., & del Rocío Caiza-Vega, M. (2023). Parasitosis intestinales en niños del cantón Ambato, Ecuador. Https://Dialnet.Unirioja.Es/Servlet/Articulo?Codigo 9203940. https://doi.org/ISSN-e0123-2576, ISSN2500-7106

Fowler, S. J., & Smets, B. F. (2017). Microbial biotechnologies for potable water production. Microbial Biotechnology, 10(5), 1094-1097. https://doi.org/10.1111/1751-7915.12837

Garzon-Castaño, S. C., Gil-Grajales, A. M., Echeverri-Herrera, D., Montoya-Giraldo, L. A., Uribe-Palacio, G. D., López-Muñoz, D. F., & Giraldo-Ospina, B. (2023). Asociación de parásitos intestinales con síndrome anémico en niños escolares: Una revisión sistemática de la literatura. Universidad y salud, 26(1), 9-18. https://doi.org/10.22267/rus.242601.309

Gitter, A., Mena, K. D., & Lisle J. T. (2023). Informing ASR treatment practices in a Florida aquifer through a human health risk approach. International Journal of Environmental Research and Public Health, 20(19), 6833. https://doi.org/10.3390/ijerph201968

Guzmán Barragán, B. L., de Souza Lauretto, M., Razzolini, M. T. P., Nardocci, A. C., & Marimón Sibaja, K. V. (2022). Assessment microbial risks for the presence of Cryptosporidium spp. and Giardia spp. based on the surveillance of the water supply systems in Colombia, 2014-2018. Water Environment Research: A Research Publication of the Water Environment Federation, 94(8), e10776. https://doi.org/10.1002/wer.10776

Jagai, J. S., Krajewski, A. K., Jimenez, M. P., Murphy, M. S., Leibowitz, S. G., & Lobdell, D. T. (2019). Watershed integrity and associations with gastrointestinal illness in the United States. Journal of Water and Health, 17(6), 978-988. https://doi.org/10.2166/wh.2019.060

Latchmore, T., Hynds, P. D., Brown, R. S., McDermott, K., & Majury, A. (2023). Assessing the risk of acute gastrointestinal illness attributable to three enteric pathogens from contaminated private water wells in Ontario. International Journal of Hygiene and Environmental Health, 248(114077), 114077. https://doi.org/10.1016/j.ijheh.2022.114077

Loría-Naranjo, M., & BeitaSandí, W. (2024). Indice biológico de lodos como bioindicadoren dos sistemas de tratamiento de agua residual hospitalaria en Costa Rica. UNED Research Journal, 16(1), e5334. https://doi.org/10.22458/urj.v16i1.5334

Narayani, D. A., Ali, S., Surja, S. S., Kristin, H., Hengestu, A., Widowati, T. A., Wijaya, M., & Kaisar Mm, M. (2024). Common intestinal parasitic infections in an improved water access, sanitation, and hygiene profile setting in North Jakarta, Indonesia. Narra J, 4(3), e1264. https://doi.org/10.52225/narra.v4i3.1264

Pal, K., Chakroborty, S., Panda, P., Nath, N., & Soren, S. (2022). Environmental assessment of wastewater management via hybrid nanocomposite matrix implications - An organized review. Environmental Science and Pollution Research International. Advance online publication. https://doi.org/10.1007/s11356-022-23015-7

Patel, M., Gupta, E. K., & Yogesh, M. (2025). Assessing and comparing knowledge, attitude, and practices related to water, sanitation and hygiene among government and non-government school students in Gujarat: a mixed method study. BMC Public Health, 25(1), 1768. https://doi.org/10.1186/s~12889-025-22937-4

Peixoto, F. da S. (2020). Risco de contaminação da água subterrânea em uma sub-bacia urbana. Mercator (Fortaleza), 19, e19016. https://doi.org/10.4215/rm2020.e19016

Poague, K. I. H. M., Ramos, A. P., de S Lopes, C. B., Gonçalves, G. V. L., Damasceno, M. B. R., Blanford, J. I., Martinez, J. A., &Anthonj, C. (2025). WASH-friendly schools for whom? Integrando la percepción de los diferentes actores escolares en Brasil. Social Science & Medicine (1982), 367(117753), 117753. https://doi.org/10.1016/j.socscimed.2025.117753

Rogawski-McQuade, E. T., Platts-Mills, J. A., Gratz, J., Zhang, J., Moulton, L. H., Mutasa, K., & Humphrey, J. H. (2019). Impact of water quality, sanitation, handwashing, and nutritional interventions on enteric infections in rural Zimbabwe: The Sanitation Hygiene Infant Nutrition Efficacy (SHINE) trial. The Journal of Infectious Diseases, 221(8), 1379-1386. https:/doi.org/10.1093/infdis/jiz048

Salas Dueñas, D. A. (2015). Análisis de la problemática del agua en Paraguay. Memorias del Instituto de Investigaciones en Ciencias de la Salud, 13(1). https://archivo.bc.una.py/index.php/RIIC/article/view/302/0

SantaCruz-López, C., Carrasco-Solano, F. A., Espinoza, M. A. V., & Fernández, M. M. S. (2023). Comparación de técnicas coproparasitológicas para el diagnóstico de geohelmintos intestinales en niños Lambayecanos. Gaceta médica boliviana, 46(1), 72-76. https://doi.org/10.47993/gmb.v46i1.636

Scherer, G. S., Leal, D. A. G., Greinert Goulart, J. A., Araújo, R. S., Beux, M. R., & Moreira, N. M. (2022). Parasitological, microbiological, and antimicrobial resistance profiles of raw and drinking water in a tourist city in the tri-border region of South America. Journal of Water and Health, 20(2), 385-395. https://doi.org/10.2166/wh.2022.256

Silva, J., Monteiro, K. J. L., Lima, O. B., Silva, M. L. A. da, Almeida, M. Μ., Evangelista, B. B. C., Pinheiro, R. S., Leal, D. N., Carneiro, E. L. N. C., Bordignon, J. C. P., Pereira, L. A., Alencar, M. F. L., Carvalho-Costa, F. A., & Moraes Neto, A. H. A. (2025). Intestinal parasitic infections: risk factors and zoonotic aspects in human and dog populations of a rural area of Piaui State, Brazil. Brazilian Journal of Biology, 85, e290197. https://doi.org/10.1590/1519-6984.290197

Srivastav, A. L., Patel, N., & Chaudhary, V. K. (2020). Disinfection by-products in drinking water: Occurrence, toxicity and abatement. Environmental Pollution, 267, 115474. https://doi.org/10.1016/j.envpol.2020.115474

Vázquez, F., Alvarenga, E., Cabrera, L. K., Herrera, L., & González Brítez, N. (2025). Infecciones parasitarias en niños del Paraguay: Una revisión sistemática desde 2014 a 2024. Revista científica ciencias de la salud, 7, 01-17. https://doi.org/10.53732/rccsalud/2025.e7801

Walsh, J. F., Scher, D. P., de Lambert, J. R., & Anderson, A. C. (2024). Risk factors for Cryptosporidium contamination in Minnesota public supply wells. Journal of Water and Health, 22(3), 612-626. https://doi.org/10.2166/wh.2024.361

World Health Organization. (2017). Guidelines for drinking-water quality: Fourth edition incorporating the first addendum. https://www.who.int/publications/i/item/9789241549950

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