Measurement of radon and thoron levels in soil, water and indoor atmosphere of Budhakedar in Garhwal Himalaya, India

Prasad, Ganesh; Prasad, Yogesh; Gusain, G. S.; Ramola, R. C.

doi:10.1016/j.radmeas.2008.04.050

Cited by 71 publications

(10 citation statements)

References 29 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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“…The transport of groundwater is enhanced during NEM due to the recharge after the rainfall of this or previous monsoon. The dissolution and chemical reaction favoring the release of major ions and 222 Rn is enhanced immediately after the monsoon (Prasad et al 2008). The study was carried out during the monsoon period and it has to be noted that in India SWM follows summer and NEM follows SWM.…”

Section: Quality and Statusmentioning

confidence: 99%

Spatio-temporal Identification of Regions with Anomalous Values of 222Rn in Groundwater of Madurai District, Tamilnadu, India

et al. 2014

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Measurement of dissolved radon (222 Rn) activity concentration in groundwater samples from private and public hand pumps, and in bore wells located at Madurai district of Tamilnadu, India, are presented. The study attempts to identify the background value of 222 Rn in groundwater of hard rock terrain and the main aquifer contributing 222 Rn, and to determine if any correlation exists with observed field parameters. Measured parameters included pH, TDS, Temperature and 222 Rn in 42 samples for two seasons (South West Monsoon [SWM] and North East Monsoon [NEM]). The results show that the 222 Rn activity concentration of the samples ranged from 0.049 to 59.952 Bq/L in South west monsoon and 0.12 to 211.60 Bq/L in North east monsoon. The higher activity was noted in NEM and the highest 222 Rn concentrations were observed in granitic terrains in both seasons. The average values of the parameters studied shows that there is a general decrease of TDS and Temperature, but an increase in 222 Rn and pH during NEM. The spatial representation of the activity shows that maximum values are in the north eastern part of the study area. Further, correlations between the measured parameters show that temperature has a negative correlation to the samples of charnockite formation during both seasons; pH and TDS also show negative relationships to 222 Rn during SWM.

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“…Inhalation is one of the pathways, by which radioactive nuclides are transferred into the human body. The long term monitoring of radioactivity in air provides useful information about the radiation in the environment and helps to evaluate their impact on man (Azahra et al, 2004;Danalakshmi et al, 2008;Ganesh Prasad et al, 2008). There are several areas in the world such as Brazil, China, India, Australia, France and Iran, where the background radiation levels were found to be high.…”

Section: Introductionmentioning

confidence: 99%

Assessment of indoor radiation dose received by the residents of natural high background radiation areas of coastal villages of Kanyakumari district, Tamil Nadu, India

Jayanthi

Maniyan²,

Perumal

2011

Radiation Physics and Chemistry

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Measurement of radon and thoron levels in soil, water and indoor atmosphere of Budhakedar in Garhwal Himalaya, India

Cited by 71 publications

References 29 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

Spatio-temporal Identification of Regions with Anomalous Values of 222Rn in Groundwater of Madurai District, Tamilnadu, India

Assessment of indoor radiation dose received by the residents of natural high background radiation areas of coastal villages of Kanyakumari district, Tamil Nadu, India

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