An Investigation on Physicochemical and Microbial Water Quality of Swimming Pools in Yazd
Abstract:
Introduction
Disrespect of health regulations and proper disinfection of water and swimming pools is effective in incidence of health problems and transfer of infectious diseases to swimmers. The aim of this research was to investigate water of swimming pools in Yazd city and compare the results with national standards.
Methods
In this study، 11 active covered swimming pools of Yazd city were sampled as census. Parameters of temperature، pH، amount of free and Combined chlorine residual، turbidity، alkalinity، hardness، the population of heterotrophic bacteria، Staphylococcus aureus، Pseudomonas aeruginosa، fecal streptococci، and fecal coliforms were studied. Sampling has been conducted every two weaks for 3 months and samples were analyzed under standard procedures.
Results
In this research، amount of pH in 84. 73%، free residual chlorine in 44. 18%، Combined residual chlorine in 72. 45%، alkalinity in19. 82%، turbidity in 86. 36%، hardness in 57. 18% and temperature in 13. 73% Samples were desirable. The fecal streptococci bacteria was not shown in all the swimming pools and population of heterotrophic bacteria، Staphylococcus aureus، Pseudomonas aeruginosa and fecal coliforms in 56. 73%، 93. 27%، 79. 36% and 91. 45% cases were desirable، respectively. Statistical analysis indicated that there is a direct relationship between Water turbidity and population of heterotraphic bacteria.
Conclusion
According to the results، the parameters of heterotrophic bacteria population، also the alkalinity and temperature had the least compliant with the standards that shows the necessity for continuous monitoring of physical، chemical and microbial parameters and also control of filtration and disinfection of water condition of swimming pools.
Language:
Persian
Published:
Journal of Shaeed Sdoughi University of Medical Sciences Yazd, Volume:20 Issue:3, 2012
Pages:
340 - 349
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