Surveillance on Swimming Pool Water Quality in Chongqing Nanchuan District in Summer of 2014

Objective To investigate the quality of swimming pool water in Nanchuan District of Chongqing, so as to ensure the health of swimmers and provide scientific evidence for hygienic administration.

Methods Three types of swimming pool, including residential owned, hotel affiliated and public swimming pool were monitored monthly from May to September in 2014. The tested items were turbidity, pH value, total coliform group counts, total bacterial counts, urea and free residual chlorine in water.

Results A total of 150 water samples were tested, the total qualified rate was 44.7%, the qualified rate of chlorine was only 53.3%. The qualified rate of water among three types of swimming pool tested by Chi-square test was significantly different(χ²=24.758, P < 0.05). The qualified rate of water in public swimming pools was the best.

Conclusion It is necessary to strengthen health surveillance and disinfection for water in swimming pools.