نتایج جستجو برای: indoor radon concentration

تعداد نتایج: 417575  

2015
Hye Ah Lee Won Kyung Lee Dohee Lim Su Hyun Park Sun Jung Baik Kyoung Ae Kong Kyunghee Jung-Choi Hyesook Park

Radon is likely the second most common cause of lung cancer after smoking. We estimated the lung cancer risk due to radon using common risk models. Based on national radon survey data, we estimated the population-attributable fraction (PAF) and the number of lung cancer deaths attributable to radon. The exposure-age duration (EAD) and exposure-age concentration (EAC) models were used. The regio...

Journal: :Journal of radiological protection : official journal of the Society for Radiological Protection 2013
J G Allen L M Zwack D L MacIntosh T Minegishi J H Stewart J F McCarthy

Previous research examining radon exposure from granite countertops relied on using a limited number of exposure scenarios. We expanded upon this analysis and determined the probability that installing a granite countertop in a residential home would lead to a meaningful radon exposure by performing a Monte Carlo simulation to obtain a distribution of potential indoor radon concentrations attri...

2006
V. Timonin D. Tuia M. Gruson

Introduction There are different national approaches to the analysis, processing and presentation of indoor radon data. Some of them were presented at the international workshop in Lausanne (IGAR 2005). EU radon surveys were compiled in JRC Ispra summary report (Dubois 2005). Swiss experience on indoor radon data treatment and mapping using geostatistical approaches (both interpolations and sim...

2007
Phillip N. Price Anthony V. Nero

Although elevated indoor radon concentration can occur almost anywhere, some areas of the U.S. have a much higher fraction of homes with elevated levels than do other areas. Knowledge of what areas tend to have elevated indoor concentrations would allow education and regulatory measures (such as required housing construction techniques) to be focused on populations most at risk from radon. In t...

Background: A substantial part of the public’s natural radiation dose is due to the inhalation of radon gas. Most of the exposure occurs indoors where the airborne concentration of radon and its decay products is usually higher than outdoors. Materials and Methods: Radon activity concentration has been measured twice in 50 classrooms in 5 levels (10 each) during summer and winter using solid-st...

Introduction Recent studies of public underground parking lots showed the influence of radon concentration and the probable discomfort caused by parking cars. Materials and Methods Radon concentration was measured in semi-closed public parking lots in the six governorates of Kuwait, using Durridge RAD7radon detector (USA). Results The peak radon concentration in the parking lots of Kuwait gover...

2000
A. Louizi D. Nikolopoulos

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...

1997
Charles S. Fowler Susan E. McDonough Ashley D. Williamson

The State of Florida has a radon standard for new construction. This study was conducted to evaluate the effectiveness of two slab types (monolithic and slab-in-stem wall) in retarding radon entry in new houses built in accordance with the proposed standard over high radon potential soils. Fourteen houses were monitored during their construction on sites whose soil gas radon concentrations were...

2000
A. IQBAL M. S. BAIG M. AKRAM S. KHAN

The early Miocene Murree Formation, late Miocene Nagri Formation and recent alluvium rock units are exposed in the sub-Himalayas of the Bagh area, State of Azad Jammu and Kashmir, Pakistan. The Bagh area was badly affected by the Kashmir earthquake of October 8th 2005 which, along the Muzaffarabad Fault, deformed both the hanging and footwall blocks. The cracks, joints, fissures and fractures i...

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