Investigation of natural radioactivity levels in water around Kadugli, Sudan.
Surface water from Miri Lake and groundwater from around Kadugli (West-Central Sudan) obtained by means of hand-pumps was analysed for (238)U, (226)Ra, (222)Rn, and (232)Th activity concentrations. The surface water showed very low levels of radionuclide concentrations: <1.0-7.5, 8.5-16.5, <1.6, and <0.1-0.39 mBq L(-1) for (238)U, (226)Ra, (222)Rn, and (232)Th, respectively. Groundwater revealed a significant amount of natural radioactivity (16.1-1720, 7.7-14.3, 3000-139,000, <0.1-39 mBq L(-1)) respectively. The overall annual effective dose was below the WHO reference dose level of 0.1 mSv yr(-1) except in one groundwater sample with an associated dose of 0.7 mSv yr(-1).
Osman
Alfatih A A
AA
Sudan Atomic Energy Commission, P.O. Box 3001, Khartoum, Sudan. alfatih_123@yahoo.com
Salih
Isam
I
Shaddad
Ibrahim A
IA
El Din
Saif
S
Siddeeg
M B
MB
Eltayeb
Hatem
H
Idriss
Hajo
H
Hamza
Walid
W
Yousif
E H
EH
D001417:Background Radiation; D004781:Environmental Exposure / Q000032:analysis*; D011174:Portugal; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods*; D011868:Radioisotopes / Q000032:analysis*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013397:Sudan; D014875:Water Pollutants, Radioactive / Q000032:analysis*; D014881:Water Supply / Q000032:analysis*
D011868:Radioisotopes; D014875:Water Pollutants, Radioactive