Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Victor M. Tshivhase"'
Autor:
Raymond L. Njinga, Victor M. Tshivhase
Publikováno v:
Journal of Radiation Research and Applied Sciences, Vol 9, Iss 3, Pp 310-315 (2016)
This study is aimed to evaluate the soil radionuclides' activity concentrations and environmental outdoor gamma dose rates in Tudor Shaft mine environs, South Africa. The excess lifetime cancer risks are also calculated. Outdoor gamma dose rates were
Externí odkaz:
https://doaj.org/article/fbb217904fa24e4598d310a8391f081c
Publikováno v:
Radiation Protection Dosimetry. 198:1353-1360
The activity concentrations of 238U, 232Th and 40K in the soil of areas surrounding the Kayelekera uranium mine were assessed. This study aims to provide a comprehensive profile of soil radioactivity distribution in the area surrounding the uranium m
Autor:
Raymond L. Njinga, Ogundele L. Tunde, Adebayo S. Adebiyi, Michael A. Olatunji, Olufemi P. Ayodele, Olowookere J. Christopher, Aladeniyi Kehinde, Alcides Pereira, Arogunjo A. Muyiwa, Victor M. Tshivhase
Publikováno v:
Environmental geochemistry and health.
Human exposure to ionizing radiation in the environment is mainly due to naturally occurring radionuclides in the soils, building materials and rocks, but the level may vary depending on the anthropogenic activities prevalent in each location. Presen
Publikováno v:
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 191
Liquid scintillation counter (LSC), with its advanced spectrometry capabilities, the Quantulus 1220™, was used to determine gross α-β measurements in 25 environmental water samples. The determination of gross α-β emitters with the LSC method re
Publikováno v:
Toxicological & Environmental Chemistry. 101:475-485
Acid mine drainage samples were collected from the central basin of the Witwatersrand basin in South Africa to study the removal of radioactivity. The samples were analyzed for gross alpha/beta act...
Publikováno v:
EPJ Web of Conferences, Vol 253, p 09006 (2021)
Radionuclide concentrations in the soil depend on the geological and anthropogenic activities of an area. They influence level of gamma radiation in the environment, which can cause significant health risk in humans. Due to the non-uniform distributi
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 319:357-363
The study was conducted to understand, (a) the effect of pH on the speciation of uranium in acid mine drainage and (b) determine the effect of uranium speciation on the removal of gross alpha activity from acid mine drainage. Speciation modeling pred
Autor:
R.L. Njinga, Victor M. Tshivhase
Publikováno v:
Exposure and Health. 11:47-57
The study aimed at quantifying the levels of three major chemical carcinogens (MCCs): Pb, Cd, and Cr in wells, boreholes, and river water sources using HRCS AAS of Bagega, Sunke, and Dareta villages of Zamfara State, Nigeria; estimating daily MCC int
Autor:
Nnenesi A. Kgabi, R.L. Njinga, Victor M. Tshivhase, L.E. Motsei, Hilma Rantilla Amwele, Gideon Kalumbu
Publikováno v:
Journal of Toxicology and Environmental Health Sciences. 9:66-72
This study assesses the health risk of metals concentration in spinach and onions obtained from different suppliers (suppliers 1, 2, 3, 4 and 5) in Mafikeng, South Africa. The following elemental concentrations of As, Ba, Bi, Cu, Cr, Co, I, Mn, Ni, P
Autor:
R.L. Njinga, Victor M. Tshivhase
Publikováno v:
Mine Water and the Environment. 36:638-645
The gross alpha and beta activity in treated water from one of the numerous gold mines in Gauteng province averaged 1.15 ± 0.13 and 0.87 ± 0.11 Bq L−1, respectively. The average readings of the fissure water from the same mine were 0.56 ± 0.10 a