Radon (Rn-222) activity measurement in ground water and associated dose estimation in Raghunathpur and Jhalda municipalities of Purulia district, West Bengal, India
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY(2023)
摘要
Present work deals with radon (Rn-222) activity measurement of deep tube-well water samples collected from Raghunathpur and Jhalda, two municipalities of Purulia district, West Bengal, India. Concentration of Rn-222 in water samples collected from Raghunathpur municipality vary from 11.82 & PLUSMN; 0.95 to 155.64 & PLUSMN; 2.33 Bq/l with an average of 49.78 & PLUSMN; 1.81 Bq/l, whereas for Jhalda municipality the concentrations vary from 12.08 & PLUSMN; 1.02 to 74.74 & PLUSMN; 2.12 Bq/l with an average of 39.06 & PLUSMN; 1.40 Bq/l. The total annual effective dose associated with Rn-222 activity has been estimated for three different categories viz. adults, children and infants in terms of inhalation and ingestion. Additionally, pH and the major cations (Na+, K+, Li+, Ca2+) present in the water samples are also measured to observe the possible correlation with the Rn-222 activity. The results indicate that the groundwater in these two municipalities are radiologically safe in terms of Rn-222 and thus do not provide significant health threats to the local inhabitants.
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关键词
radon,associated dose estimation,raghunathpur,ground water,activity measurement
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