Radon (222Rn) and thoron (220Rn) account for almost two-thirds of the annual average radiation dose received by Irish population. A detailed study natural radioactivity levels radon exhalation rates was carried out in a legislatively designated “high radon” area, as based on existing indoor measurements. Indoor concentrations, airborne radiometric data stream sediment geochemistry were collated...

*Corresponding author: Mr. Deepak Verma, Department of Applied Physics, Z. H. College of Engineering & Technology, Aligarh Muslim University, Aligarh-202002, Uttar Pradesh, India. Fax: +91 571 270042 E-mail: [email protected] Background: More than 50% of the total dose received by human beings from all sources of radiation (both from natural and manmade) comes from radon and its progeny which is...

Copyright © 2015 by Hirosaki University. All rights reserved. General survey for the environmental radon and thoron has been performed in Minamidaitojima, Okinawa prefecture, southwestern part of Japan. In situ measurements of the radon and thoron exhalation rates were conducted at a total of 7 points using an accumulation technique with a ZnS(Ag) scintillation detector. The medians of radon an...

In the past, the radon isotope Rn (thoron) was often paid little attention in the context of radiation protection at home. Measurements in buildings on the Central-Chinese Loess Plateau have shown, however, that in dwellings built from unfired earthen material, thoron and its progenies can significantly contribute to the inhalation dose of the dwellers. In Germany, such buildings mainly compris...

For a healthy indoor environment, it is important to understand which materials and factors favor the generation of high levels radon. A preliminary multivariate statistical analysis was carried out on two datasets concerning radon building in Campania Region using Principal Component Analysis (PCA) k-means partitional technique. total 13 parameters related were used. The results show greater c...

This study presents radon and thoron concentration measurements and the corresponding effective dose rates in mud dwellings located in the high background radiation area of Mrima Hill, Kenya. Discriminative technique was used for simultaneous measurement of radon and thoron. The effective dose was evaluated based on the concentration of the isotopes and the time spent indoors. Radon concentrati...

Radon is a gas with symbol Rn and atomic number 86. It’s an active, colorless, odorless, tasteless gas formed from decaying of uranium. It is one of the densest gas, and also a health hazard due to its radioactivity. Uranium is the parent compound from which radon is formed. Uranium has been there since the earth was formed. Thus it will be present for millions of years in the same concentratio...

Radon mass and thoron surface exhalation rate of soil samples collected from the surrounding area Harduaganj thermal power plant (HTPP), Aligarh is measured using an active radon/thoron monitor (SMART RnDuo). The radon values range 27±1 to 100±3 mBq kg−1 h−1 with a mean value 63±17 h−1. vary 1.0 ± 0.2 10±1 kBq m−2h-1 5.7 2.2 m−2h-1. are found be higher than worldwide

Background: More than 50% of the total dose received by human beings from all sources of radiation (both from natural and manmade) comes from radon and its progeny which is responsible for lung cancer in many cases. Materials and Methods: In the present study, the measurements have been carried out by using twin chamber dosimeter cups with LR-115 type-II detectors. The value of track ...