Radiological assessment of radium and dissolved radon in groundwater near the Manchanabele reservoir, Bengaluru, India

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2025-03-19 DOI:10.1016/j.radphyschem.2025.112735

Deepika D N , Ambika M R , Karthik Kumar M B , Sultan J. Alsufyani , D.A. Bradley , Mayeen Uddin Khandaker , Karunakara N , Nagaiah N

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Abstract

This study assesses the radiological impact of groundwater on the general population living in the Manchanabele reservoir area, Bengaluru, India. The concentrations of 226Ra and dissolved 222Rn were measured using a HPGe gamma-ray spectrometer and RAD7 - an active radon detector, respectively. The 226Ra activity concentration ranged from 0.05 ± 0.001 to 0.88 ± 0.02 Bq/L (geometric mean: 0.17 ± 0.005 Bq/L) and is well below the WHO reference value of 1 Bq/L. Where as, the dissolved 222Rn activity concentration varied from 4.7 ± 1.9 to 625.8 ± 47.8 Bq/L (geometric mean: 38.3 ± 12.7 Bq/L), with 91 % of samples exceeded the WHO recommended limit of 11 Bq/L. The result of annual effective dose calculations from radon ingestion reveal that, from most of the samples it exceeded the WHO limit of 100 μSv/y, with higher doses to the stomach and small intestine. Additionally, correlations between 226Ra and 222Rn concentrations with bulk water parameters (pH, TDS, and conductivity) were explored.

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来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.