Affiliations: * Surat Thani Public Health Office, Surat Thani Provinces 84000, Hospital
** Department of Protozoology, Faculty of Tropical Medicine, Mahodol University, Bangkok
*** National Institute of Health, Department of Medical Science Tiwanond Road, Nonthaburi 1100, Thailand
**** Office of Atoms for Peace
***** Ministry of Science and Technology, Bangkok 10900, The Academy of Science, the Royal Institute, Bangkok 10200,Thailand
Source: Intern Med J Thai 2004; 20: 168-173
Surveys for potential hazards in nature hot spring in Nakorn Si Thammarat and Surat Thani provinces revealed the presence of Legionella pneumophila and Pathogenic free-living amebas Naegleria and Acanthameba; radon gas ubiquitious in hot spring waters, with extremely high level encountered in certain specimens obtained from Surat Thani province.