Radiation exposure from high-level radiation area and related mining and processing activities of Jos Plateau, central Nigeria

Funtua, I. I.; Elegba, S.B.

doi:10.1016/j.ics.2004.10.006

Cited by 10 publications

(6 citation statements)

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“…Locations with elevated gamma dose rates were also found in the crushed ore (before heap leaching) of 13.53 lSv h -1 , heap leaching of 10.65 lSv h -1 . The overall dose rates in this area was not as high as that reported from other countries, for instance, in Jos Plateau, central Nigeria, the related milling activities of processing ores containing high concentrations of thorium and uranium shows high levels of dose rate with values up to 100 lSv h -1 for processed zircon [23].…”

Section: Effective Dose Estimationcontrasting

confidence: 62%

Technologically elevated natural radioactivity and assessment of dose to workers around a granitic uranium deposit area, China

Wang

Liu

Chen

et al. 2016

J Radioanal Nucl Chem

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Gamma dose rates in a uranium site in Guangdong, China were measured based on different functioning areas (mining area, milling area, tailings area and downstream area); four representative soil profiles were measured with HP Ge gamma spectrometry. The gamma dose rates as well as annual effective dose overall exceeded the relevant values reported from other countries. Both the external and the internal hazard index overwhelmingly exceeded the recommended value. Some areas were heavily polluted with technologically elevated concentrations of 238 U and 226 Ra, while others were observed with extremely high background level of natural radioactivity, mainly stemming from granitic lithology.

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Section: Effective Dose Estimationcontrasting

confidence: 62%

Technologically elevated natural radioactivity and assessment of dose to workers around a granitic uranium deposit area, China

Wang

Liu

Chen

et al. 2016

J Radioanal Nucl Chem

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“…In Nigeria, attempts have been made towards assessing the radiological consequence of mining in some states [14,16,[20][21][22][23][24][25][26][27][28][29][30][31][32][33]. A summary of the results of these studies is presented in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Health and ecological hazards due to natural radioactivity in soil from mining areas of Nasarawa State, Nigeria

Aliyu

Ibrahim

Akpa

et al. 2015

Isotopes in Environmental and Health Studies

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Nasarawa State is located in north central Nigeria and it is known as Nigeria's home of solid minerals. It is endowed with barite, copper, zinc, tantalite and granite. Continuous releases of mining waste and tailings into the biosphere may result in a build-up of radionuclides in air, water and soil. This work therefore aims to measure the activity concentration levels of primordial radionuclides in the soil/sediment samples collected from selected mines of the mining areas of Nasarawa State. The paper also assesses the radiological and radio ecological impacts of mining activities on the residents of mining areas and their environment. The activity concentrations of primordial radionuclides ((226)Ra, (232)Th and (40)K) in the surface soils/sediment samples were determined using sodium iodide-thallium gamma spectroscopy. Seven major mines were considered with 21 samples taken from each of the mines for radiochemistry analysis. The human health hazard assessment was conducted using regulatory methodologies set by the United Nations Scientific Committee on the Effects of Atomic Radiation, while the radio ecological impact assessment was conducted using the ERICA tool v. 1.2. The result shows that the activity concentrations of (40)K in the water ways of the Akiri copper and the Azara barite mines are 60 and 67% higher than the world average value for (40)K, respectively. In all mines, the annual effective dose rates (mSv y(-1)) were less than unity, and a maximum annual gonadal dose of 0.58 mSv y(-1) is received at the Akiri copper mine, which is almost twice the world average value for gonadal dose. The external hazard indices for all the mines were less than unity. Our results also show that mollusc-gastropod, insect larvae, mollusc-bivalve and zooplankton are the freshwater biotas with the highest dose rates ranging from 5 to 7 µGy h(-1). These higher dose rates could be associated with zinc and copper mining at Abuni and Akiri, respectively. The most exposed terrestrial reference organisms are lichen and bryophytes. In all cases, the radio ecological risks are not likely to be discernible. This paper presents a pioneer data for ecological risk from ionizing contaminants due to mining activity in Nasarawa State, Nigeria. Its methodology could be adopted for future work on radioecology of mining.

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“…On the other hand, ICP-MS can be useful in determining low concentration (in parts per billion) and ultra-low concentration of elements (in parts per trillion). In addition, unlike the AAS, the ICP-MS has an extremely low detection limit, a large linear range and an ability to detect the isotopic composition of elements (Funtua, 2001). Hence transition metals, such as Vanadium (V), Yttrium (Y), Hafnium (Hf), Zirconium (Zr), Niobium (Nb), Chromium (Cr), Strontium (Sr) etc.…”

Section: Introductionmentioning

confidence: 99%

Trace element geochemical imprints and multi-path health risk assessment of potentially toxic elements in soils from the polymetallic area of tashan-jatau, northwestern nigeria

Omang¹,

Effiom²,

Omeka³

et al. 2023

Glo Jnl Geo Sci

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The occurrence of Potentially toxic elements (PTEs) in the soil phase may portend environmental, ecological and health-related risks. Hence, this study has combined high-precision geochemical analyses (X-ray fluorescence (XRF) and inductively Coupled Plasma Mass Spectrometry (ICP-MS)), quantitative soil pollution indices and health risk assessment modelling for a holistic and precise assessment of the intrinsic vulnerability of the soil system to contamination. Geochemical analysis showed that the soils are highly enriched with PTEs such as V (mean = 449.5 mg/L), Cr (mean = 529.9 mg/L), Cu (mean = 374.4 mg/L), Sr (mean = 1365.3 mg/L), Zr (mean = 2703 mg/L), Zn (mean = 282.5 mg/L), and Pb (mean = 127.3 mg/L). Quantitative soil pollution assessment (contamination factor and enrichment factor) revealed that besides mining, the distribution and association between trace elements and oxides were from surface environmental conditions (including mobility potential, leaching metal-complexation, weathering and oxidation of parent material). Health risk assessment based on hazard quotient and hazard index revealed that the inhabitants are generally more exposed to risks from toxic elements ingestion than dermal contact and inhalation; the children are vulnerable to risks than adults. The cancer risks from ingestion and dermal contact of As and Cr for both children and adults are relatively higher (> 1.0E−04) than the acceptable range; although the children population seems to be more susceptible to cancer risks due to lower body weight.

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Radiation exposure from high-level radiation area and related mining and processing activities of Jos Plateau, central Nigeria

Cited by 10 publications

References 0 publications

Technologically elevated natural radioactivity and assessment of dose to workers around a granitic uranium deposit area, China

Technologically elevated natural radioactivity and assessment of dose to workers around a granitic uranium deposit area, China

Health and ecological hazards due to natural radioactivity in soil from mining areas of Nasarawa State, Nigeria

Trace element geochemical imprints and multi-path health risk assessment of potentially toxic elements in soils from the polymetallic area of tashan-jatau, northwestern nigeria

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