ارزيابي شاخص هاي بهداشتي كيفيت آب استخرهاي شناي شهر اروميه در سال 1392

Investigation of Water Quality Health Indicators of the Swimming Pools in Urmia in 2013

آلودگي آب استخرهاي شنا مي تواند باعث انتقال بيماري هاي مختلفي به انسان گردد. بنابراين هدف از اين مطالعه ارزيابي شاخص هاي بهداشتي كيفيت آب استخرهاي شناي شهر اروميه مي باشد. مواد و روش ها اين پژوهش مقطعي به صورت سرشماري از كل استخرهاي سرپوشيده و فعال شهر اروميه كه تعداد آنها در سال 92 به 14 عدد مي رسيد انجام شد و پارامترهاي فيزيكي شامل pH، درجه حرارت و كدورت و پارامترهاي شيميايي شامل ميزان كلر آزاد باقي مانده، قلياييت، سختي و پارامترهاي ميكروبي شامل جمعيت باكتري هاي هتروتروف، استافيلوكوك اورئوس، سودوموناس آئروژينوزا، استرپتوكوك و كليفرم مدفوعي و كليفرم كل مورد بررسي قرار گرفت. نمونه برداري هر هفته و به مدت 6 ماه انجام و نمونه ها مطابق با روش هاي استاندارد آزمايش شد. داده ها با استفاده از آمار توصيفي تجزيه و تحليل شدند. نتيجه گيري براساس نتايج، مطابقت كامل كيفيت آب استخرها با استانداردها به نسبت ضعيف بود و پايش مداوم كلر آزاد باقي مانده همراه با تنظيم pH عامل مهمي در حفظ كيفيت مطلوب آب استخرها مي باشد.

Contamination of swimming pools’ water can lead to the transfer of different diseases to humans. The aim of this study was to investigate the water quality health indicators in Urmia swimming pools. Materials an‎d Methods In this cross-sectional study, 14 active covered swimming pools in Urmia city were chosen as census. The physical parameters such as pH, temperature, turbidity and chemical ones such as residual chlorine, hardness, alkalinity and microbial parameters such as heterotrophic bacteria, Staphylococcus aureus, Pseudomonas aeruginosa, Streptococcus and fecal and total coliforms were studied. Sampling has been conducted every weak for 6 months and they were analyzed under standard procedures. Data were analyzed using descriptive statistics. Results In this research, free residual chlorine in %67, turbidity in %89.9, amount of pH in %83.8 and temperature in %76.2 of the samples were desirable. In none of the pools, fecal coliform, fecal streptococcus and staphylococcus aureus were above the threshold levels. The populations of heterotrophic bacteria, Staphylococcus aureus, and Pseudomonas aeruginosa in %69.96, %98.8, %85.1 of the samples were desirable, respectively. Statistical analysis indicated that there is a direct relationship between water turbidity and the population of bacteria and reverse relationship between the residual chlorine and the studied organisms(r=-0.595, p<0.005) Conclusion According to the results, complete compliance of the pools to the standards was fairly poor. It is also important to maintain the proper level of free residual chlorine and pH in the swimming pools to ensure safety of the water quality.