نتایج جستجو برای: indoor radon

تعداد نتایج: 39314  

2017
Mina Ha Seung-sik Hwang Sungchan Kang No-Wook Park Byung-Uck Chang Yongjae Kim

Indoor radon is the second most important risk factor for lung cancer and may also be a risk factor for hematopoietic cancers, particularly in children and adolescents. The present study measured indoor radon concentration nationwide at 5553 points during 1989-2009 and spatially interpolated using lognormal kriging. The incidences of lung cancer, non-Hodgkin's lymphoma (NHL), and leukemia, stra...

Journal: :international journal of environmental research 2015
s. sedighian s. h. kim s. y. cho m. j. kim d. h. kim

indoor radon concentration (irc) is among the emerging environmental and health issues in republic of korea. due to lack of epidemiological studies and insufficient public awareness about radon, effective parameter ranking system is required to establish protocols for future field sampling and settlement construction. this research propose the irc parameter ranking system based on field measure...

2014
Octavio R. Hinojosa de la Garza Luz H. Sanín María Elena Montero Cabrera Korina Ivette Serrano Ramirez Enrique Martínez Meyer Manuel Reyes Cortés

This study correlated lung cancer (LC) mortality with statistical data obtained from government public databases. In order to asses a relationship between LC deaths and radon accumulation in dwellings, indoor radon concentrations were measured with passive detectors randomly distributed in Chihuahua City. Kriging (K) and Inverse-Distance Weighting (IDW) spatial interpolations were carried out. ...

2007
Michael C. Osborne

The Air and Energy Engineering Research Laboratory (AEERL) of EPA began a research program to develop and demonstrate radon mitigation alternatives in 1984. This program grew significantly in 1986 with the addition of a Congressional funding supplement. In 1989 a separate Radon Mitigation Branch was established within the Pollution Control Division of AEERL. Radon mitigation research within EPA...

2013
S. Tung J. K. C. Leung J. J. Jiao W. Wartenberg

Radon and its progenies have been ranked second of being responsible for lung cancer in humans. Hong Kong has four major groups of uranium-rich plutonic and volcanic rocks and is suffering from radon emanated therefrom. However, there is a lack of radon potential maps in Hong Kong to resolve the spatial distribution of radonprone areas. A ten-point radon potential system was developed in German...

2007
Susan E. McDonough

In support of a possible performance standard for radon-resistant construction for the State of Florida, a protocol is needed to provide postconstruction indoor radon measurement. In order to relate the results of short term compliance measurements to inferred annual average concentrations, a study was conducted in four regions of Florida known to have potential for elevated indoor radon. Eight...

2000
Jack R. Hughes Brad Turk Robby Cardwell

Starting in December, 1996 and continuing through April, 1998, the Tennessee Radon Program, USEPA Region 4 Office, the Southern Regional Radon Training Center, and USEPA Headquarters conducted an investigation of several houses in Livingston, TN in which homeowners had discovered indoor radon concentrations far in excess of their original postmitigation test levels. The investigation team condu...

2004
Anne-Sophie Evrard Denis Hémon Solenne Billon Dominique Laurier Eric Jougla Margot Tirmarche Jacqueline Clavel

Introduction The leukemogenic effect of ionising radiation has been well established for high-dose exposure. In contrast, the risk associated with natural radiation exposure still needs to be documented. Ecological studies have suggested a positive association between indoor radon concentration and childhood leukaemia, which has not been confirmed by case-control studies. The studies that inves...

2001
M. C. Subba Ramu A. N. Shaikh T. S. Muraleedharan

Solid-state nuclear track detectors are being used to obtain the time integrated concentration levels of indoor radon/thoron and their daughters. This technique is preferred for taking such measurements in dwellings Such measurements are important as the radiation dose to human beings due to indoor radon constitutes more than 50 per cent of the total dose including that received from the natura...

2014
Narjes Hazar Mojgan Karbakhsh Masud Yunesian Saharnaz Nedjat Kazem Naddafi

BACKGROUND Radon exposure is the second cause of lung cancer after exposure to tobacco smoke and the first cause in nonsmokers. The purpose of this study was to assess perceived risk of exposure to indoor residential radon among health care providers in urban and rural health centers affiliated to Tehran University of Medical Sciences. METHOD In 2012-2013, a survey was carried out on 462 heal...

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