Variations of radon and thoron concentrations in different types of dwellings in Mysore city, India

Sankarabarani river basin gains significance due to presence of major industrial, agricultural, urban development and tourist related activities has influenced the water quality in the estuarine environment. Investigations about river water quality has been attempted but not more studies focus about the evaluation of groundwater discharge a significant process that connects groundwater and the coastal seawater have been attempted. For the present study, radium (226Ra) a naturally occurring isotope was measured at three locations and used as effective tracers for estimating the groundwater discharge along with nutrient inputs to the Bay. Groundwater samples representing north east monsoon (December, 2017) has been collected during tidal variation in three locations (Location A- away from the coast towards inland, Location B-intermediate between Location A and the coast and Location C-at the estuary). 226Ra mass balance calculated groundwater fluxes irrespective of tidal variations were 2.27×108 m3/d, 2.19×108 m3/d and 5.22×107m3/d for A, B and C locations respectively. The nutrients like Dissolved inorganic nitrogen (DIN), Dissolved inorganic Phosphate (DIP) and Dissolved Silica (DSi) were found to be influencing the coastal groundwater by contributing fluxes to the sea of about 679.33 T mol/day. The study suggests increasing radium and nutrient fluxes to the Bay altering the coastal ecosystems would result in surplus algal blooms creating hypoxia.

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“…The Ra estimation errors were within ±10%. The 226 Ra activity in the samples were calculated using equation recommended by [42][43] as below:…”

Section: Water Sampling and Analysismentioning

confidence: 99%

Estimating groundwater inputs from Sankarabarani River Basin, South India to the Bay of Bengal evaluated by Radium (226Ra) and nutrient fluxes

Saravanan

Ponnumani

et al. 2020

ijceae

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“…Some rock types contain uranium in concentrations higher than 5 ppm. These are granites, syenites, pegmatites, acid volcanic rocks and gneisses (Shashikumar et al, 2009;UNSCEAR, 2000). Radon measurement techniques divide into two groups as active and passive measurement techniques.…”

Section: Introductionmentioning

confidence: 99%

Radon concentration measurements in surface water samples from Van Lake, Turkey using CR-39 detectors

Kayakökü

Doğru

2020

Bitlis Eren University Journal of Science and Technology

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In this study, radon concentration was examined in surface water samples taken from Van Lake in spring and autumn. The samples were taken along the coastline from Tatvan, where the active fault line lies, until Erciş. Analyses were performed by using CR-39 solid nuclear track detectors and RadoSYS radon measurement system. Radon measurement parameters (CRn, Es, Em and ECRa) were calculated with the data obtained. The results of this study were compared with the limit values given for radon in water and the results obtained in similar studies.

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Radon, thoron and their progeny concentration variations in dwellings of Gogi region, Yadgir district of Karnataka, India

Avinash

Rajesh

Керур

et al. 2014

J Radioanal Nucl Chem

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Variations of radon and thoron concentrations in different types of dwellings in Mysore city, India

Cited by 4 publications

References 10 publications

Estimating groundwater inputs from Sankarabarani River Basin, South India to the Bay of Bengal evaluated by Radium (226Ra) and nutrient fluxes

Estimating groundwater inputs from Sankarabarani River Basin, South India to the Bay of Bengal evaluated by Radium (226Ra) and nutrient fluxes

Radon concentration measurements in surface water samples from Van Lake, Turkey using CR-39 detectors

Radon, thoron and their progeny concentration variations in dwellings of Gogi region, Yadgir district of Karnataka, India

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