- 公益社団法人 日本アイソトープ協会
- RADIOISOTOPES (ISSN:00338303)
- vol.48, no.4, pp.263-265, 1999-04-15 (Released:2011-03-10)
Uranium concentrations in some natural mineral waters sold in Japan (domestic 20 and foreign 9) were measured by ICP-MS. The U concentrations were found in a wide range, differing by a factor of 40000, about 0.4-1.6×104ng/l. The values over guidance level (2μg/1) were observed in two domestic samples and one foreign one. Occurrence of such a high U concentration indicates the need of further survey of U concentration of mineral water to consider uranium intake.