Hajjartabar M
Faculty of Industrial Safety & Health, Sahel Park, Boulevard Sahel, Hakimyeh Tehranpars, Tehran, Iran.
Water Sci Technol. 2004;50(1):63-7.
There are many large and small public outdoor and indoor swimming pools in Tehran that hundreds of people use, especially on hot summer days. The bacteriological quality of the water of some of these pools was assayed over a period of about one year (2001-2002). To assess if these swimming pools were a health risk to users, eleven public swimming pools, in the east and northeast of the city, were examined, and the exposed people were monitored. Samples of swimming-pool waters were examined for colony counts, Escherichia coli and coliforms. In addition, Pseudomonas aeruginosa was isolated from nine (81.8%) of those pools. P. aeruginosa grew in seven (63.6%) of the swimming-pool water samples. In two (18.2%) other samples, in addition to P. aeruginosa, high rates of total bacterial count, total coliforms and faecal coliform counts were also found. At the same time, users of the swimming pools were asked to complete a questionnaire. Ear swabs were collected from 179 users with a history of ear problems during the previous two weeks. An adequate control group was chosen randomly from those who never used the investigated pools. P. aeruginosa was isolated from the ear swabs of 142 (79.3%) of the cases, as well as from 4% of the controls. Results were matched for age, sex, duration of time spent in the pools, place of occurrence and other useful information. Investigation of the contaminated swimming pools revealed that chlorination was often inadequate, especially when high numbers of people led to overuse of the pools. Although the results of this research showed that otitis externa was strongly associated with the swimming pools, due to P. aeruginosa, an extensive follow-up study is needed to determine the other possible health risks associated with public pools.
德黑兰有许多大大小小的公共室内外游泳池，数百人使用这些泳池，尤其是在炎热的夏日。在大约一年的时间里（2001 - 2002年）对其中一些泳池的水质进行了细菌学检测。为评估这些游泳池是否对使用者构成健康风险，对该市东部和东北部的11个公共游泳池进行了检查，并对接触者进行了监测。检测了游泳池水样中的菌落计数、大肠杆菌和大肠菌群。此外，从其中九个（81.8%）泳池中分离出了铜绿假单胞菌。在七个（63.6%）游泳池水样中铜绿假单胞菌生长。在另外两个（18.2%）样本中，除了铜绿假单胞菌外，还发现了高比率的总细菌计数、总大肠菌群和粪大肠菌群计数。与此同时，要求游泳池使用者填写一份问卷。从179名在过去两周有耳部问题病史的使用者中采集了耳拭子。从那些从未使用过被调查泳池的人中随机挑选了一个足够的对照组。在142例（79.3%）病例的耳拭子中分离出了铜绿假单胞菌，在4%的对照组中也分离出了该菌。对年龄、性别、在泳池中停留的时间、发病地点及其他有用信息进行了结果匹配。对受污染游泳池的调查显示，氯化处理往往不足，尤其是当大量人员导致泳池过度使用时。尽管这项研究结果表明，由于铜绿假单胞菌，外耳道炎与游泳池密切相关，但仍需要进行广泛的后续研究，以确定与公共泳池相关的其他可能的健康风险。
