Carvalho, F. P., Madruga, M. J., Reis, M. C., Alves, J. G., Oliveira, J. M., Gouveia, J., & Silva, L. (2007). Radioactivity in the Environment around Past Radium and Uranium Mining Sites of Portugal. Journal of Environmental Radioactivity, 96, 39-46.
https://doi.org/10.1016/j.jenvrad.2007.01.016

has been cited by the following article:

• TITLE: Assessment of Natural Radioactivity in Rivers Sediment and Soil from the Copper Belt Artisanal Mining Region, Democratic Republic of the Congo

  AUTHORS: Emmanuel K. Atibu, João M. Oliveira, Margarida Malta, Marta Santos, Crispin K. Mulaji, Pius T. Mpiana, Fernando P. Carvalho

  KEYWORDS: Natural Radioactivity, Gamma-Ray Spectrometry, Alpha-Particle Spectrometry, Artisanal Mining Activity, Radiological Hazard

  JOURNAL NAME: Journal of Geoscience and Environment Protection, Vol.9 No.7, July 15, 2021

  ABSTRACT: The concentrations and distribution of naturally occurring radionuclides (238U, 235U, 234U, 230Th, 226Ra, 210Pb, 232Th, 228Ra, and 40K) were determined by alpha and gamma spectrometry in soil and sediments collected from Luilu and Dilala rivers located in the mining district of Kolwezi (Lualaba Province) of the Democratic Republic of the Congo. The average concentrations of 238U and 226Ra in the analyzed samples were 5 - 10 times higher than the world average values for soil provided by the United Nations Scientific Committee on the Effects of Atomic Radiation. However, the average concentrations of 232Th were found similar to the world average. In both river basins, artisanal mining activities and mineral washing sites displayed the higher concentration values of radionuclides. The mean values of health risk indices calculated for those sites were found significantly higher compared to world average levels. Radiation protection measures seem needed to ensure the radiation safety of local populations. Graphical Abstract