Authors:
B. Rana Health Physics Unit, Bhabha Atomic Research Centre, P.O. Jaduguda Mine, East Singhbhum District, Jaduguda, 832102 Jharkhand, India

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R. Tripathi Environmental Assessment Division, Bhabha Atomic Research Centre, Mumbai, 400085 India

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J. Meena Health Physics Unit, Bhabha Atomic Research Centre, P.O. Jaduguda Mine, East Singhbhum District, Jaduguda, 832102 Jharkhand, India

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S. Sahoo Environmental Assessment Division, Bhabha Atomic Research Centre, Mumbai, 400085 India

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R. Topno Health Physics Unit, Bhabha Atomic Research Centre, P.O. Jaduguda Mine, East Singhbhum District, Jaduguda, 832102 Jharkhand, India

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A. Shukla Health Physics Unit, Bhabha Atomic Research Centre, P.O. Jaduguda Mine, East Singhbhum District, Jaduguda, 832102 Jharkhand, India

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V. Puranik Environmental Assessment Division, Bhabha Atomic Research Centre, Mumbai, 400085 India

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Abstract  

In the environs of uranium mining, milling and processing facilities and in the uranium mineralized terrain, a little higher ambient radon concentration and gamma radiation level may be expected in comparison with natural background. The present study gives a brief account of atmospheric radon concentration, gamma absorbed dose rate and radiation dose received by the members of public in the vicinity of Narwapahar uranium mine. The ambient radon concentration in the air in the study area was found to vary from 5 to 107 Bq m−3 with geometric mean of 24 Bq m−3 and geometric standard deviation of 1.74 Bq m−3. The measured gamma absorbed dose rate in air at 1 m above the ground ranged from 87 to 220 nGy h−1 with an overall arithmetic mean of 128 ± 18.5 nGy h−1. The mean annual effective dose received by the members of public from inhalation of radon and its progeny and external gamma exposure was estimated to be 0.32 mSv year−1, which is comparable to other reported values elsewhere.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)