Background: Assessment of activity concentrations of 238U, 232Th, 40K and gamma dose rate (DR) was carried out over a laterite mining field in Ilorin-south, Nigeria. Materials and Methods: A well calibrated Super-Spec (RS-125) gamma spectrometer was used to measure the activity concentrations of 40K, 238U, 232Th and gamma doses rate at 1 m above the ground level over the laterite mining field. ...

‘The primary aim of radiological protection is to provide an appropriate standard of protection for man without unduly limiting the beneficial actions giving rise to radiation exposure. This aim cannot be achieved on the basis of scientific concepts alone. All those concerned with radiological protection have to make value judgements about the relative importance of different kinds of risk and ...

The diagnosis of pneumoconiosis during life depends upon an industrial history and radiological examination (Carpenter, Cochrane, Gilson, and Higgins, 1956). However, many miners complain of dyspnoea but have no radiological changes at all. This has led to the supposition that long exposure to industrial dust hazards may lead to pulmonary disability which is not typical pneumoconiosis (Carpente...

Uranium mining and milling industries are growing rapidly in many countries and this trend is likely to continue with the increasing demand for nuclear fuel. The problems of radiological hazards in this part of the nuclear fuel cycle have received considerable attention in recent years because of the epidenuological evidence of lung cancer among uranium miners, mainly smokers. The hazard is not...