Heavy metal contamination of selected mining fields in North-Central Nigeria.

This study evaluates the causes, concentration and the associated health risks of selected heavy metals (HMs) in soil samples collected from beryllium and gold mining fields in Nigeria. The samples of soil were collected manually and analysed by means of Atomic Absorption Spectrophotometry (AAS). Seventy-two (72) samples were analysed which presented varying degrees of concentration of the selected HMs.

Soil-to-plant transfer of K, U and Th and radiological risk assessment of selected mining sites in Nigeria.

One of the major route through which humans are exposed to ionizing radiation is via food chain, which is consequent of soil-to-plant transfer of radionuclides. This work reported the activity concentrations of K, U and Th in samples of water, soil and guinea corn grains collected from Beryllium and Gold mining sites in Kwara, Nigeria. In-situ measurements at approximately 1 m in the air was carried out using a well-calibrated portable Gamma Spectrometer (Super Spec RS-125), while the soil, water and the guinea corn samples were analyzed using a '3 × 3' inch lead-shielded NaI (Tl) detector.

Radioactivity levels and transfer factor for granite mining field in Asa, North-central Nigeria.

Natural radioactivity measurement and dose assessment are important aspects of radiation protection. The goal of this study is to validate the previous results obtained from the in-situ measurements in the study area in order to ascertain the level of radiation hazards to the populaces living around the mining site.A3 × 3-inch lead-shielded NaI(Tl) detector was used to measure the activity concentrations of and in soil, water and guinea corn grain samples collected from a granite mining field in Asa, Kwara State, North-central Nigeria.

Dataset on radioactivity measurement of Beryllium mining field in Ifelodun and gold mining field in Moro, Kwara State, North-central Nigeria.

This work contains dataset of measured activity concentrations of and gamma doses at 1 m above the ground level over Beryllium and Gold mining fields in Ifelodun and Moro respectively, Kwara State, North-central Nigeria. A well calibrated Super-Spec (RS-125) gamma spectrometer was used to carry out these measurements. Measurements were carried out manually in 72 randomly selected sample points.

Natural radionuclides and radiological risk assessment of granite mining field in Asa, North-central Nigeria.

In this study, a well calibrated Super-Spec (RS-125) gamma spectrometer was used to measure the activity concentrations of and gamma doses rate at 1 m above the ground level over a granite mining field in Asa, Kwara State, North-central Nigeria. Measurements were carried out in 50 randomly selected sample points. The overall mean activity concentrations of and gamma dose are 570.

Radiogenic heat production in the Coastal Plain Sands of Ipokia, Dahomey Basin, Nigeria.

This study is aimed at establishing the radiogenic heat production in the Benin Formation of Dahomey Basin using in-situ measurements of elemental concentrations of uranium, thorium and potassium over a kaolin deposits in Ifonyintedo, Ipokia LGA, Ogun State. Super-Spec gamma ray spectrometer is used to obtain varied data of naturally occurring radionuclides over eleven different stations in the Coastal Plain Sands at 1 m height above the ground. The mean heat produced by uranium, thorium and potassium are 294.

Influence of n-Mosfet transistor on dye-sensitized solar cell efficiency.

A new strategy for evaluating the efficiency of Dye-sensitized Solar Cell (DSC) employed in this study was to introduce a device stabilizer which also functioned as an external load. This aim was accomplished through computations of efficiency of different DSCs based on n-Mosfet transistor. Transistor Z44 mosfet's impact on the DSC systems was to significantly moderate the effect of two vital components namel; the photoanodes and electrolyte sensitizers.

Data on the porphyrin effect and influence of dopant ions on dye as sensitizer in dye-sensitized solar cells.

In this work, data on the effect of porphyrin characteristic of UV/VIS absorption of () dye-sensitized solar cells sensitized with different electrolytes were presented. The influence of dopants from 1 g/100 ml electrolyte: distilled water and applied time difference of 3 min is observed on the photovoltaic characteristics and performance of the deposited thin film. The output efficiency and incident photon to conversion efficiency of dye-sensitized solar cells was acquired and could be further used as a model for designing dye-sensitized solar models as substitute for silicon solar cells.

Cancer risks from chest radiography of young adults: A pilot study at a health facility in South West Nigeria.

The recommendation of chest radiography for school admission and employment purposes should be discouraged due to the risks of radiation especially cancer induction. It is therefore imperative to keep diagnostic radiation doses as low as possible. This dataset presents the entrance surface dose, effective dose, bone marrow dose, breast dose, lung dose and the incidence cancer risks from chest radiography of 40 young adult females.

Comparison between experimental and satellite temperature datasets in Covenant University.

This article contains the ground and satellite meteorological data sets of clear-sky temperature events for five years (2012-2016) in Covenant University, Ota, Ogun State, Nigeria. The satellite data were obtained from Atmospheric Infrared Sounder (AIRS) while the ground data information were acquired from Davis weather station data logger-vantage pro2. These data were acquired from propagation study that used same location (Lat: 6.

Data on the radiometric survey over a kaolinitic terrain in Dahomey Basin, Nigeria.

This article consists the in situ data sets of activity concentrations of radionuclides (K-40, Th-232 and U-238) and gamma radiation dose rates measured about 1 m above a kaolinitic terrain in Ifonyintedo, Dahomey Basin, SW Nigeria. Nineteen (19) data points were randomly occupied at the lower axis of the kaolin field using a hand-held detector known as Super-Spec (RS 125). At each data point, the measurements were taken four times, while their averages and standard deviations were estimated in order to ensure accuracy.

Dataset of surface water vapour density in southeast, Nigeria.

In this data article, analysis of surface water vapour density in Southeast, Nigeria were reported. The meteorological data were obtained for the period of 39 years between 1973 and 2012 from National Oceanic and Atmospheric Administration (NOAA) Climatology Centre. Five stations considered in the research area includes: Enugu, Onitsha, Abakaliki, Aba and Ihiala.