Journal of health research in community

Abstract: Introduction and purpose: Swimming pools are considered as a potential source of microbial and chemical contamination due to direct and continuous contact with different groups of people. The present study was conducted to investigate the water health indicators of swimming pools in Kashan and compare it with the existing standards in the country in the years 2017-2021. Methods: In this cross-sectional descriptive study, 830 samples were taken from all indoor and active pools in Kashan in 2017-2021. Physical parameters including pH and turbidity and chemical parameters including free residual chlorine, combined chlorine and microbial parameters including total coliform, Pseudomonas aeruginosa, Staphylococcus aureus and heterotrophic bacteria were measured. Finally, the data were analyzed using SPSS software16. Results: The concentration of free residual chlorine, combined chlorine, pH, turbidity, and corrosivity were desired range in 53%, 48%, 67%, 81%, and 67% of the water samples, respectively. Total coliform, Staphylococcus aureus, and heterotrophic bacteria were positive in 1, 11, and 17 of the samples, respectively, and none of the samples were contaminated with Pseudomonas. A significant and inverse relationship was observed between the bacterial population and free residual chlorine, and a significant and direct relationship was observed between the bacterial population and turbidity (p<0.005). Conclusion: Due to the low compliance of the water chlorine level with the standard and the observation of coliform bacteria, Staphylococcus aureus, and heterotrophs, it is necessary to continuously monitor the physicochemical and microbial parameters of the water, as well as to carry out proper health surveillance and disinfection.

Keywords: Coliform, Kashan, Pollution, Swimming pool, Water

     

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