Inventory and geochemical host phases of natural radionuclides in tin mining materials from Nigeria.
On the Nigerian Jos Plateau tin mining is extensively carried out in open pit style. Several types of materials occurring there (raw materials, waste, and soil) were analysed radiometrically. The geochemical host phases of the natural radionuclides were determined by a sequential extraction procedure according to the European BCR standard. It was found that especially easily mobilisable (228)Ra must be taken into consideration as a radioactive contaminant for the mining area.
Leopold
K
K
Helmholtz-Zentrum München, German Research Center for Environmental Health, Institute of Radiation Protection, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany. karsten.leopold@helmholtz-muenchen.de
Arogunjo
A M
AM
Giussani
A
A
Höllriegl
V
V
Oeh
U
U
Veronese
I
I
Gerstmann
U C
UC
D008906:Mining; D009549:Nigeria; D011850:Radioactive Waste / Q000032:analysis; D011868:Radioisotopes / Q000032:analysis*; D011886:Radon / Q000032:analysis; D012990:Soil Pollutants, Radioactive / Q000032:analysis; D014001:Tin
D011850:Radioactive Waste; D011868:Radioisotopes; D012990:Soil Pollutants, Radioactive; D014001:Tin; D011886:Radon