Abstract The performance of the radon (222Rn)-deficit technique has been evaluated at a site in which complex DNAPL mixture (mostly hexachlorocyclohexanes and chlorobenzenes) contaminated all four layers (from top to bottom: anthropic backfill, silt, gravel marl) soil profile. Soil gas samples were collected two depths (0.8 m 1.7 m) seven field campaigns total 186 222Rn measurements performed w...

Due to its high activities in groundwater, the radionuclide 222Rn is a sensitive natural tracer to detect and quantify groundwater inflow into lakes, provided the comparatively low activities in the lakes can be measured accurately. Here we present a simple method for radon measurements in the low-level range down to 3 Bq m−3, appropriate for groundwater-influenced lakes, together with a concep...

Background: Radon and its daughter product are a major source of natural radiation exposure, the measurement of radon concentration in dwellings is assuming ever increasing importance. It is known from recent surveys in many countries that radon and its progeny contributes significantly to total inhalation dose and is well established that radon when inhaled in large quantity causes lu...

Radon therapy using radon (222Rn) gas is classified into two types of treatment: inhalation of radon gas and drinking water containing radon. Although short- or long-term intake of spa water is effective in increasing gastric mucosal blood flow, and spa water therapy is useful for treating chronic gastritis and gastric ulcer, the underlying mechanisms for and precise effects of radon protection...

introduction in this study, effective dose equivalent for the public due to internal exposure to 222radon (222rn) 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 in...

background: the potential hazards of exposure to radiation from radon have been of great concern worldwide, as it is associated with an increased risk of lung cancer. radon (222rn) and its progeny are the main sources of radioactivity in the environment. the half-life of 222rn (3.82 days) is long enough for it to diffuse into and build up in homes. 220rn or thoron from the 232th series, and 219...

The aim of the present study is to measure activity concentrations 226Ra, 222Rn, mass exhalation rate and annual effective dose radon in marble samples collected from Al-Bayda city local market –Libya. Samples were measured by using a low-background NaI (Tl) detector. average 226Ra 222Rn 72.57 Bq.kg-1 597.85 Bq.m-3.The vary 0.05-0.30 Bq.kg-1.S-1 with an 0.13 Bq.kg-1.S-1. was calculated under in...

Background: Radon as a potential risk of radiation exposure is a natural radioactive element that can emit from rocks and soils. Due to solubility in water, it can be inhaled or consumed by the public. The purpose of this study was carrying out measurement and evaluation of radon concentration in samples of drinking water which are collected from water supplies of Borujerd. Materials and Method...