根据奥地利法律卫生法规，一种测试细菌（铜绿假单胞菌） 必须在30秒内以3.5原木的力量在池水中还原。像 随着pH值的增加，氯的消毒能力显著降低 泳池水的最大pH值设定为7,8。考虑到它的化学特性，它的热稳定性 然而，水通常具有较高的自然pH值和较高的缓冲容量，因此 pH值只能通过添加不允许的大量化学品来降低，例如 硫酸。 处理高矿物质浓度的热水会降低温度 自然产生的二氧化碳含量。这导致碳酸盐-碳酸氢盐的位移 平衡，从而使pH值增加至8.7，从而影响失活 微生物的数量减少，从而有利于病原体的存活。 包括2个参考文献、图表。

According to Austrian legal hygienic regulations, a test bacterium (Pseudomonas aeruginosa) must be reduced in pool water by the power of a 3,5 log reduction within 30 seconds. As the disinfection capability of chlorine decreases significantly with increasing pH value, the maximum pH value for pool water is set at 7,8. Given its chemical characteristics, thermal water, however, often has a higher natural pH value and also a high buffer capacity so that the pH value can only be reduced by adding inadmissibly high quantities of chemicals such as sulphuric acid. The treatment of thermal water with high mineral concentrations leads to a reduction of the naturally occurring CO2 content. This results in a shift of the carbonate hydrogencarbonate balance and thus to an increase of the pH value up to 8,7 which influences the inactivation rate of microorganisms negatively and thereby favors the survival of pathogens. Includes 2 references, figures.