Viability of Pseudomonas aeruginosa in Thermal Waters

Abstract

Viability of Pseudomonas aeruginosa was examined by putting it into hot spring collected from seven places. In the acid waters (pH 2.0 to 2.2), the organisms lost their viability immediately at both cultivation temperatures of 37°C and 42°C. In alkaline waters (pH 8.0 to 9.1), the organisms were detected and increased after cultivation for 2 hours at 37°C.
The above result suggests that Pseudomonas aeruginosa may be present in whirlpools and/or indoor swimming pools of alkaline waters having a large number of bathers in a relatively small volume of water.