the present paper measures natural radioactivity in different areas of wassit governorate, using (hpge) detector. gamma spectrum analysis for each sample along with caululated specific activity show that the average concentrations of u-238, th-232, and k-40 have been 19.420±4.7 bq/kg, 18.487±5.05 bq/kg, and 204.266±46.9 bq/kg respectively, which is lower than the worldwide average value. while ...

The accident at the Fukushima Daiichi Nuclear Power Plant resulted in a substantial release of radionuclides into the environment. Consequently, the emergency operation workers were exposed to both external gamma and beta radiations arising from the fallout; however, their beta doses were scarcely recorded at the time due to an insufficient number of dosemeters. To solve this problem, the autho...

Gamma rays pose enough energy to induce chemical changes that may be biologically important for the normal functioning of body cells. The external exposure of human beings to natural environmental gamma radiation normally exceeds that from all man-made sources combined. In this research natural background gamma dose rates and corresponding annual effective doses were determined for selected cit...

BACKGROUND Emerging empirical evidence suggests exposure to "green" environments may encourage higher levels of physical activity among children. Few studies, however, have explored this association exclusively in pre-school aged children in the United States. We examined whether residing in neighborhoods with higher levels of greenness was associated with higher levels of outdoor physical acti...

Background: In some areas of Ramsar, a city in northern Iran, residents receive a much higher annual radiation exposure than is permitted for radiation workers. Induction of adaptive response in residents of Ramsar has been reported previously. In this study induction of such a response in short term exposure to high background levels of gamma radiation is investigated. Materials and M...

Abstract A comprehensive radiological survey was carried out in an open-cut slate stone quarry. The activity of 226 Ra, 228 Ra and 40 K the ore samples were measured as 38 ± 5, 41 6 869 52 Bq kg 1 , respectively. Outdoor radon indoor concentrations from 37 7 to 193 11 m ?3 (77 8 ), 49 253 23 (131 13 average outdoor gamma dose 116 84 nSv h ? annual effective doses estimated between 1.0 0.1 3.3 0...

Introduction In this study, effective dose equivalent for the public due to internal exposure to 222 radon ( 222 Rn) was evaluated in three regions of Ramsar, a northern coastal city in Iran. Materials and Methods Measurements were carried out using a radon monitoring device. Outdoor and indoor radon concentrations were measured within 24 hours with an integration interval of 3 hours. Regions w...

introduction the exposure of human beings to ionizing radiation from natural sources is a continuing and inescapable feature of life on earth. for most individuals, this exposure exceeds that from all man-made sources combined. materials and methods in this study, the annual effective dose in high level environmental background radiation areas (hlebras) of northern city of ramsar in iran was de...