The natural radioactivity of the earth formations Tar Al-Najaf region in Al-Ashraf governorate has been studied , which is considered one most important archaeological areas province. As phenomena prominently present governorate, as it cuts sharply to form a rocky cliff, well overlooks from southern end plateau and on sea Al-Najaf, clear surprising way, flew, by selecting 30 sites take soil sam...

The world is naturally radioactive and approximately 82% of human-absorbed radiation doses, which are out of control, arise from natural sources such as cosmic, terrestrial, and exposure from inhalation or intake radiation sources. In recent years, several international studies have been carried out, which have reported different values regarding the effect of background radiation on human heal...

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...

Abstract. A previous study by the authors illustrated distribution of naturally occurring radionuclides, i.e., potassium (K40), thorium (Th232), and uranium (U238), in sediment Berg River estuary. The also described Delta Underwater Gamma detection System (DUGS) its usage to measure concentrations these natural radionuclides. It proposed a novel radiometric mapping technique with QGIS and, more...

We describe extensive testing of a large-volume, high-speed water sampler for the concentration and measurement of radionuclides using high-resolution gamma ray spectrometry. The sampler processed hundreds to thousands of liters of natural waters with variable suspended sediment and salinity loads at flow rates of 10-201/min. Extraction of most radionuclides in the water column was accomplished...

Fulvic Acids (FA) are major organic substances dissolved in natural waters (70-80%) [1-3]. FA form stable complexes with heavy metals and radionuclides stipulate migration forms thereof soils [1,2,4-9] . In spite of numerous researches, data about the physical-chemical characteristics heterogeneous.

Radionuclides released into the environment enter the food chain through plants and fish among others, and pose a potential risk to human health. Eliminating radionuclides from the soil environment or reducing their uptake by food crops would decrease the dose for humans. The possibility of phytoremediation was suggested to reduce the amount of radionuclides in the soil. The transfer rate of ra...

Coal, bottom ash and fly ash samples were collected from three different coal-fired thermal power plants in India and subjected to gamma spectrometry analysis for natural radioactivity contents. The results of present study show that fly ash and bottom ash contains two to five times more natural radionuclides than feed coal. None of the fly-ash and bottom ash samples had radium equivalent activ...

Environmental biomonitoring has demonstrated that organisms such as crustaceans, fish and mushrooms are useful to evaluate and monitor both ecosystem contamination and quality. Particularly, some mushroom species have a high capacity to retain radionuclides and some toxic elements from the soil and the air. The potential of mushrooms to accumulate radionuclides in their fruit-bodies has been we...

Anthropogenic radionuclides contaminate a range of environments as a result of nuclear activities, for example, leakage from waste storage tanks/ponds (e.g. Hanford, USA or Sellafield sites, UK) or as a result of large scale nuclear accidents (e.g. Chernobyl, Ukraine or Fukushima, Japan). One of the most widely applied remediation techniques for contaminated waters is the use of sorbent materia...