Life time fatality risk assessment due to variation of indoor radon concentration in dwellings in western Haryana, India

Kansal, Sandeep; Mehra, Rohit; Singh, N. P.

doi:10.1016/j.apradiso.2011.11.057

Cited by 25 publications

(16 citation statements)

References 8 publications

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“…Henshaw et al (1990) claimed that indoor radon exposure is associated with the risk of leukaemia and certain other cancers, such as melanoma and cancers of the kidney and prostate (Henshaw et al 1990). In India, several studies were conducted to measure radon concentration in soil and air Rani et al 2013;Singh et al 2005;Kansal et al 2012;Jayanthi et al 2011;Prasad et al 2008). The concentration of indoor radon and its decay products shows large temporal and local fluctuations in the indoor atmosphere due to the variation in topography, house construction type, soil characteristics and weather (Mehra et al 2006).…”

Section: Introductionmentioning

confidence: 99%

An Investigation of Factors Influencing Indoor Radon Concentrations in Dwellings of Northern Rajasthan, India

Duggal

Mehra

Rani³

2015

Journal of the Geological Society of India

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An effort has been made to find possible relationships of indoor radon levels with building construction materials, ventilation condition of dwellings and soil gas radon levels. Indoor radon measurements were made using LR-115 type II cellulose nitrate films and the concentrations were estimated by knowing the track density of films through optical microscope. Soil gas radon levels were measured using RAD7, an electronic radon detector manufactured by Durridge Company, USA. This study sheds light on the seasonal indoor radon activities in Rajasthan dwellings. Maximum values of the indoor radon concentration were observed during the winter and minimum during the summer season. Results show that ventilation rate is inversely proportional to radon level. Highest level of indoor radon concentration was found in the mud type dwellings compared with dwellings made of concrete, cement and marble. A positive correlation (R 2 = 0.45) between indoor radon and soil gas radon concentration was observed. A weak positive correlation (R 2 = 0.22) was observed between soil gas radon concentration and radium content in soil. Indoor radon concentration was found to be associated with the presence of radon concentration in local soil, building material used for roof, floor and walls, type of ventilation conditions and presence of cracks on the walls/floor. Positive correlation between indoor and soil gas radon concentration suggest the large contribution of local soil towards indoor radon.

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Section: Introductionmentioning

confidence: 99%

An Investigation of Factors Influencing Indoor Radon Concentrations in Dwellings of Northern Rajasthan, India

Duggal

Mehra

Rani³

2015

Journal of the Geological Society of India

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“…In the present work, the following parameters were determined. 1-Potential Alpha Energy Concentration (PAEC), can be estimated by using the relation [5][6][7]:…”

Section: Experimental Techniquementioning

confidence: 99%

Indoor Radon Concentrations Measurements for Selected Dwellings in Some Baghdad Districts – Iraq

Ahmed

Mhana

Hassan

et al. 2019

MJS

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In this work, measurements of indoor radon concentrations were completed for selected dwellings in Baghdad governorate using DURRIDGE RAD7 detector. The spectra measured by this detector demonstrated that, the radon concentrations were changed from 89 Bq/m 3 (Hay Ur district) to 191 Bq/m 3 (Al-Mansour district) with an average value of 123.3±24.3 Bq/m 3 which is below the recommended range (200-300 Bq/m 3 ) given by (ICRP, 2009). All other studied parameters such as EP, PAEC, AED and CPPP their values were less than or corresponding to the allowed worldwide average values.

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“…This is obtained by dividing the track density by the total exposure of radon source. Then equation (8) of radon exposure becomes [18,19]:…”

Section: Determination Of Radon Concentrationmentioning

confidence: 99%

“…The Potential Alpha Energy Concentration (PAEC) in terms of (WL) units was obtained using the relation [8,21] …”

Section: Potential Alpha Energy Concentrationmentioning

confidence: 99%

“…If its concentration in indoor air becomes high, radon and its decay products can be inhaled and couse lung cancer. Many privious studies of indoor radon concentration have been performed with widely used of solid state nuclear track detectors (SSNTDs) [4,5,6,7,8,9,10]. However, in this work the indoor radon gas concentrations using CR-39 detctors have been measured in the department of physics in college of science of Al-Mustansiriyah University, at which a radioactive sources are usualy used in their laboratories.…”

Section: Introductionmentioning

confidence: 99%

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Measurements of Radon Concentrations and Dose Assessments in Physics Department-Science College-Al-Mustansiriyah University, Baghdad, Iraq

Al-Alawy

Fadhil

2015

ILCPA

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ABSTRACT. Measurements of radon gas concentrations with their progeny and the annual effective dose indoor the building of Al-Mustansiriyah University College of Science-Physics Department have been carried out by using time-integrated passive radon dosimeters solid state nuclear track detector CR-39 technique. The detectors with 1cm x1cm have been distributed over 70 places and suspended for sitting (1m) and standing (1.75m) positions in each location under study. The dosimetric measurements are made over a period of 90 days from 30 January 2014 to 30 April 2014. The calibration process has been done using radium-226 source with known activity radiation. It has found that the indoor radon gas concentrations varing from 37. (ICRP, 2009). The annual effective dose of the inhalation exposure to radon gas has been estimated and this vary from 0.394mSv/y to 0.617mSv/y with an average value 0.540mSv/y at 1m, and varing from 0.378mSv/y to 0.599mSv/y with an average value 0.495mSv/y at 1.75m which are within the worldwide permissible limist 3-10mSv/y (ICRP, 1993). The potential alpha energy concentration found to vary from 4.053mWL to 6.343mWL with an average value 5.557mWL at 1m and vary from 3.888mWL to 6.162mWL with an average value 5.087mWL at 1.75m which are less than the recommended value 53.33mWL (UNSCEAR, 1993). The lung cancer cases per million person per year vary from 7.093 to 11.101 per million person per year with an average value 9.725 per million person per year at 1m and vary from 6.805 to 10.784 per million person per year with an average value 8.904 per million person per year which are less than the recommended range 170-230 per million person per year (ICRP, 1993). The number of decays per-minute using swabs measurements technique have been used for selected units within two swabs from building materials walls for each unite, with area of 100cm 2 using Ludlum 3030, the average of three swabs measurements have been calculated. Hence, the effectiveness of emitted alpha particles from the walls has been calculated to be varied from 0.00000 to 0.02222Bq/cm 2 with an average value 0.01169Bq/cm 2 at 1m and 0.01015Bq/cm 2 at 1.75m respectevily which are within the permissible limit 0.04Bq/cm 2 (Danial, 2010).

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Life time fatality risk assessment due to variation of indoor radon concentration in dwellings in western Haryana, India

Cited by 25 publications

References 8 publications

An Investigation of Factors Influencing Indoor Radon Concentrations in Dwellings of Northern Rajasthan, India

An Investigation of Factors Influencing Indoor Radon Concentrations in Dwellings of Northern Rajasthan, India

Indoor Radon Concentrations Measurements for Selected Dwellings in Some Baghdad Districts – Iraq

Measurements of Radon Concentrations and Dose Assessments in Physics Department-Science College-Al-Mustansiriyah University, Baghdad, Iraq

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