Measurements of 238U, 232Th, and 40K activity concentrations in some commonly used medicinal plant parts have been performed for radiation hazard assessment as baseline data health risk monitoring South Africa other countries. The mean was found to be 43.3 Bqkg-1, 33.7 180 Bqkg-1 Sclerocarya birrea; 85.0 75.3 316.7 Cymbopogon citratus; 47.3 37.0 773.3 Neorautanenia ficifolia; 25.7 30.0 510 Kige...

Uncontrolled disposal of oilfield produced water in the surrounding environment could lead to soil contamination by naturally occurring radioactive materials (NORM). Large volumes become highly contaminated with radium isotopes (226Ra and 228Ra). The concentration radionuclides 226Ra, 232Th 40K were determined using gamma ray spectrometry order assess radiological health hazards excess lifetime...

background: this paper describes the common hazards in the metal industry – chemicals and noise. the aim of the study was to get an overview of risk levels of mentioned occupational hazards and examine the implementation of adequate safety measures. methods: measurements of noise and chemicals were performed, self-reported exposure and usage of personal protective equipment from workers were us...

conclusions the use of smoothing methods helps us to eliminate non-linear effects but it is more appropriate to use cox proportional hazards model in medical data because of its’ ease of interpretation and capability of modeling both continuous and discrete covariates. also, cox proportional hazards model and smoothing methods analysis identified that age at diagnosis and tumor size were indepe...

Abstract Huge quantities of fly ash and bottom are generated from thermal power plants it presents great concern for country, mainly due to the environmental effects. In this study, ashes were characterized technical radiological aspects. Health effect activity radionuclides 226 Ra, 232 Th 40 K was estimated via radium equivalent (Raeq), external hazards index (H ex ), absorbed dose rate (D) an...

Introduction: Natural radioactivity in the soil is considered a major indicator of radiological contamination. Primordial radionuclides are the main source of natural radioactivity. Natural radioactivity transfers radionuclides into the environment and poses radiation hazards to people's health. Therefore, the present study aimed to determine the radon concentration an...