Survey of Surat Thani Province’s Hot Spring Revisited in 2009

Abstract

A recent survey of Wat Tharnnamron hot spring in Tashang District, Surat Thani Province, revealed a maximum external gamma radiation of 1,200 microroentgens per hour and a maximum radon concentration of 2,823.7 Becquerels per liter. These values substantially confirm the presence of a significant amount of the long-lived radionuclide 226Ra, which is a bone-seeking radioisotope. The investigators propose as necessary a measure that should be undertaken by the local authority, that is, to erect a warning sign providing brief information about the risk of exposure to the radioactive gas in order to prevent any adverse effect resulting from exposure, especially from consuming the water.