Survey of indoor air quality in three indoor swimming pools

The survey concerned three swimming pools using a similar type of basic water treatment, buthaving different structures and ventilation systems. The survey included measuring air currentvelocities above the pools and studying the microbiological and physico-chemical quality ofthe pool water. In addition, microbes were determined from the indoor air, structures andventilation systems, and airborne particles and volatile organic compounds from the indoor airsamples. The total particle concentration of the indoor air and their size distribution variedbetween the swimming pools. The trihalomethane concentrations in the water were similar inall the swimming pools surveyed, the greatest concentrations in both the air and water havingbeen found in swimming pool E. The principal problem was that in the swimmers breathingzone, above the pools surface, the air flow velocities were minimal. This emphasizes theimportance of ventilation arrangements in the design and engineering of indoor swimmingpools.