Abstract
The purpose of this study is an examination of the change in the water quality of the bathtub and the decrease in various disinfectant by taking a bath in the bathtub. The testee targeted university student's male and female. The index of pollution targeted KMnO4, turbidity, the color degree, TOC, and the electric conduction degree. The disinfectant targeted chlorine, chlorine dioxide, and hypobromous acid. The bathing method washes one's body with the detergent, washes one's body with the hot water and does not wash one's body. As a result, the decrease in the density of the disinfectant and the pollution basic unit of each pollution material were obtained according to the kind of the male and female and bathing.
