abstract background: and soils with which it comes in contact. there is dual exposure from radon in water i.e. due toinhalation of the radon released from the water into the ambient air and through ingestion whenwater is used for drinking. as radon contaminated water adversely affects the health, it istherefore fundamental from health and hygiene point of view to measure radium concentrationand...

222Rn gas represents the major contributor to human health risk from environmental radiological exposure. In confined spaces radon can accumulate relatively high levels so that mitigation actions are necessary. The Italian legislation on radiation protection has set a reference value for activity concentration of at 300 Bq/m3. this study, measurements annual 62 bank buildings spread throughout ...

Several improvements were made for Nuclear Track Detectors (NTDs) used for environmental studies and for particle searches. A new method was used to determine the bulk etch rate of CR39 and Makrofol NTDs. It is based on the simultaneous measurement of the diameter and of the height of etch-pit cones caused by relativistic heavy ions (158 A GeV Pb and In ions) and their fragments. The use of alc...

A network of three radon stations has been established in the Langadas Basin, northern Greece for radon monitoring by various techniques in earthquake prediction studies. Specially made devices with plastic tubes including Alpha Track-etch Detectors (ATD) were installed for registering alpha particles from radon and radon decay products exhaled from the ground, every 2 weeks, by using LR-115, t...

Indoor radon concentrations were determined with the use of track-etched detectors and two monitors, both for radon and one for the decay products, in various regions of Greece. Until now, 1137 dwellings have been measured. Some factors, that influence the radon concentration in dwellings, are discussed in this paper. The factors, used in this analysis, were derived from the householders’ answe...

Radon is a natural radioactive element in the gaseous form. It is a decay product of radium, which is present in all rocks and building materials. Radon escapes from them via diffusion and convection. The effect of radon releasing from solid materials to the pore air is called emanation. The parameters that characterise quantitatively this effect are the emanation coefficient and/or exhalation ...

The Laboratorio Subterráneo de Canfranc (LSC) is the Spanish national hub for low radioactivity techniques and associated scientific technological applications. concentration of airborne radon a major component radioactive budget in neighborhood detectors. LSC hosts Radon Abatement System, which delivers suppressed air with 1.1±0.2 mBq/m3 222Rn. content continuously monitored an Electrostatic M...

Background: Radon, thoron and their progenies are the most important contributions to human exposure from natural sources. Radon exists in soil gas, building materials, Indoor atmosphere etc. Among all the natural sources of radiation dose to human beings, inhalation of radon contributes a lot. The work presented here emphasizes the long term measurements of radon, thoron and their proge...

Background: Everyone is exposed to radon because it is present everywhere with varying concentrations. Radon and its progeny are well established as lung carcinogenic. Materials and Methods: Track etch technique using LR-115 plastic track detectors has been used to measure the effective radium content and radon exhalation rates in soil samples collected from urban area of Etah district...

In this research, radon gas concentration was measured for a number of schools located in Diyala Governorate, Iraq, using the CR-39 detector, which is from Solid State Nuclear Track Detectors (SSNTDs). classrooms, detector set at distance 160 cm earth’s surface, period time, these detectors were exposed (30 days). Where results showed that ranged lowest value equal to(8.528)Bq/m3 sample (D5) (A...