Jeppesen C, Bagge L, Jeppesen V F
Alfred Jørgensen Laboratorium A/S, Frederiksberg.
Ugeskr Laeger. 2000 Jun 19;162(25):3592-4.
We investigated 87 samples of pool water for the presence of Legionella. The samples were from cold water pools (< 28 degrees C) and from hot water pools (> 32 degrees C). Sampling was furthermore done on normal water samples, on water from the bottom of pools and of water from departure from the activated carbon filters. Legionella was not detected in any of the samples from cold water pools, whereas in the hot water pools 10% of the pool water samples and 80% of the water from the filters were infected with Legionella pneumophila. The highest concentrations of Legionella were found in the filter samples, whereas the concentrations in the pool water (10-100 cfu/liter) were not alarming. This investigation demonstrates the potential risk of presence of Legionella in hot water pools with activated carbon filters being the site with best growth potential. It should be stressed that a high level of disinfection (at least 1.0 mg free chlorine/liter and pH 7.2) is essential for the prevention of Legionella in pool water at higher temperatures.
我们对87份泳池水样进行了军团菌检测。这些样本来自冷水池（水温<28摄氏度）和热水池（水温>32摄氏度）。此外，还对正常水样、池底水样以及活性炭过滤器流出的水样进行了采样。在任何冷水池样本中均未检测到军团菌，而在热水池中，10%的池水样本和80%的过滤器流出水样感染了嗜肺军团菌。过滤器样本中军团菌浓度最高，而池水中的浓度（10 - 100菌落形成单位/升）并不令人担忧。这项调查表明，装有活性炭过滤器的热水池存在军团菌的潜在风险，活性炭过滤器是军团菌生长潜力最佳的场所。应当强调的是，对于预防较高温度泳池水中的军团菌，高水平消毒（至少1.0毫克游离氯/升且pH值为7.2）至关重要。
