Keywords
radioactivity
radon
radium
dose
How to Cite
Abstract
The European Directive on the quality of drinking water in 2003 establishing limits on the values of the radioactive parameters concerning the quality of drinking waters was translated to the Spanish legislation on 2003. These parameters are the gross alpha and beta indexes, tritium content and total indicative dose. The corresponding Spanish Royal Decree came into force in 2008. Not only tap drinking water is subjected to control of radioactivity but also commercial drinking water. Different estudies have been carried out all over the world in both cases. There is a wide range of techniques for the measurement of radioactivity in water. This article describes these techniques and shows when they must be applied. Finally the most important results obtained after analysis in tap water and commercial water are shown both in Spanish and non-Spanish waters. The results show that limits are overtaken in some cases and special care must be taken in order to reduce the levels of radioactivity in drinking water as much as possible.
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