Influence of Radon Emission from Hot Springs Water on Hotel Rooms
Hot springs are touristsattractive. In Guangdong province of China many health resorts were set up near hot spring sites with hot spring introduced into baths inside hotel rooms. This study selected eight hot spring hotels in Guangdong to investigate the influence of indoor use of 222Rn-bearing water on indoor radon levels. Radon in tap hot spring waters, as well as in indoor and outdoor air, was determined by using Scintillation Cell method, NR-667A and RAD-7 continuous radon detector, respectively. Radon concentrations ranged 15.5-255.5 Bq·L-1 in the hot spring waters, and 9-18 Bq·m-3 in outdoor air. Systematic diurnal variation of radon concentration in the investigated hotel rooms was determined. Use of spring water inside the baths significantly increased the indoor radon levels. The rising of radon levels in the rooms was largely attributed to the guests?bathing with hot spring water. Spring water use in the hotel rooms had radon transfer coefficients from 2.1×10-4 to 8.9?0-3. The results of this study show that hot spring water flow during bath filling is by far the dominant mechanism by which 222Rn is released into the air of the hotel rooms.
radon hot spring Hotel 222Rn-bearing water radon transfer coefficient
SONG Gang CHEN Diyun TANG Zeping YUE Yumei
School of Environmental Science and Engineering,Guangzhou University,Guangzhou 510006,Guangdong,China
国际会议
2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)
上海
英文
902-904
2009-06-02（万方平台首次上网日期，不代表论文的发表时间）