Abstract
Hot mineral springs in Jordan are very attractive to people who seek physical healing but they are unaware of natural radioactive elements that may be contained in the hot mineral water. The activities of the natural radioactive isotopes were measured and the concentrations of the parents of their natural radioactive series were calculated. The measured radionuclides were 234 Th, 226 Ra, 214 Pb, 214 Bi, 228 Ac, 228 Th, 212 Pb, 212 Bi and 208 Tl . In addition the activities of 235 U and 40 K were measured. The activities ranged from 0.14 to 34.8 Bq/l, while the concentrations of parent uranium and thorium isotopes ranged from 3.0×10 −3 to 0.59 mg/l. The results were compared with those for drinking water.
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