Uranium and radium in groundwater and surface water samples in Morocco

被引：19

作者：

Hakam, OK

Choukri, A

Moutia, Z

Chouak, A

Cherkaoui, R ^{[1
]}

Reyss, JL

Lferde, M

机构：

[1] Fac Sci, Lab Faibles Radioact & Environm, Kenitra 14000, Morocco

[2] Fac Sci Rabat, Nucl Phys Lab, Rabat, Morocco

[3] CEA, CNRS, Lab Mixte, Lab Sci Climat & Environm, F-91198 Gif Sur Yvette, France

来源：

RADIATION PHYSICS AND CHEMISTRY | 2001年 / 61卷 / 3-6期

关键词：

uranium; radium; natural waters;

D O I：

10.1016/S0969-806X(01)00362-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Activities and activity ratios of uranium and radium isotopes (U-234, U-238, Ra-226, Ra-228, U-234/U-238, Ra-226/U-238, Ra-228/Ra-226) have been determined for 15 wells, 14 hot springs, 7 cold springs and 11 rivers. Activities of the radium isotopes were measured by ultra gamma spectrometry using a low background and high efficiency well type germanium detector whereas those of uranium were counted in an alpha spectrometer. The minimal, maximal and average values are reported here for each water source. The obtained results show that, unlike well waters, the thermal spring waters present relatively low U-238 activities and elevated Ra-226 activities and U-234/U-238 activity ratios. Uranium and radium activities are similar to those published for other non polluting regions of the world. (C) 2001 Published by Elsevier Science Ltd.

引用

页码：653 / 654

页数：2