Assessment of radioactivity in the soil samples from Imphal city, India, and its radiological implication

The radioactivity concentration and the natural gamma absorbed dose rates of the terrestrial radionuclides (226Ra, 232Th, and 40K) have been determined in soil samples collected from twenty different locations of Imphal city, India, using high-purity germanium detector. The range of activity concent...

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Main Authors: B Arunkumar Sharma, Nabadwip Sarangthem Singh, Priya Thiyam Devi, Hirakendu Basu, Sudeshna Saha, R K Singhal
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2017-01-01
Series:Radiation Protection and Environment
Subjects:
Online Access:http://www.rpe.org.in/article.asp?issn=0972-0464;year=2017;volume=40;issue=3;spage=149;epage=153;aulast=Sharma
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author B Arunkumar Sharma
Nabadwip Sarangthem Singh
Priya Thiyam Devi
Hirakendu Basu
Sudeshna Saha
R K Singhal
author_facet B Arunkumar Sharma
Nabadwip Sarangthem Singh
Priya Thiyam Devi
Hirakendu Basu
Sudeshna Saha
R K Singhal
author_sort B Arunkumar Sharma
collection DOAJ
description The radioactivity concentration and the natural gamma absorbed dose rates of the terrestrial radionuclides (226Ra, 232Th, and 40K) have been determined in soil samples collected from twenty different locations of Imphal city, India, using high-purity germanium detector. The range of activity concentration of 226Ra, 232Th, and 40K in the soil from the studied areas varies from 30.3 Bq/kg (Phayeng) to 155.5 Bq/kg (Lamphel), 21.2 Bq/kg (Yairipok) to 257.1 Bq/kg (Lamphel), and 287.4 Bq/kg (Uchiwa) to 2209.3 Bq/kg (Changangei) with overall mean values of 94.1 Bq/kg, 146.5 Bq/kg and 1222.9 Bq/kg, respectively. The absorbed dose rate and annual effective outdoor dose in the study area range from 61.0 nGyh−1 and 0.4 mSv (Laphupat Tera) to 294.4 nGyh−1 and 1.1 mSv (Lamphel) with an average value of 182.9 nGyh−1 and 1.1 mSv. The external hazard index ranged from 0.4 to 1.8 with an average of 1.1. It was significant in 12 locations as it exceeded unity.
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spelling doaj.art-c0c9cc7ee16948a6a00eea45ea933efb2022-12-22T00:32:41ZengWolters Kluwer Medknow PublicationsRadiation Protection and Environment0972-04642017-01-0140314915310.4103/rpe.RPE_28_17Assessment of radioactivity in the soil samples from Imphal city, India, and its radiological implicationB Arunkumar SharmaNabadwip Sarangthem SinghPriya Thiyam DeviHirakendu BasuSudeshna SahaR K SinghalThe radioactivity concentration and the natural gamma absorbed dose rates of the terrestrial radionuclides (226Ra, 232Th, and 40K) have been determined in soil samples collected from twenty different locations of Imphal city, India, using high-purity germanium detector. The range of activity concentration of 226Ra, 232Th, and 40K in the soil from the studied areas varies from 30.3 Bq/kg (Phayeng) to 155.5 Bq/kg (Lamphel), 21.2 Bq/kg (Yairipok) to 257.1 Bq/kg (Lamphel), and 287.4 Bq/kg (Uchiwa) to 2209.3 Bq/kg (Changangei) with overall mean values of 94.1 Bq/kg, 146.5 Bq/kg and 1222.9 Bq/kg, respectively. The absorbed dose rate and annual effective outdoor dose in the study area range from 61.0 nGyh−1 and 0.4 mSv (Laphupat Tera) to 294.4 nGyh−1 and 1.1 mSv (Lamphel) with an average value of 182.9 nGyh−1 and 1.1 mSv. The external hazard index ranged from 0.4 to 1.8 with an average of 1.1. It was significant in 12 locations as it exceeded unity.http://www.rpe.org.in/article.asp?issn=0972-0464;year=2017;volume=40;issue=3;spage=149;epage=153;aulast=SharmaAbsorbed gamma dose ratesalluvial soilhazard indexImphalnatural radioactivity
spellingShingle B Arunkumar Sharma
Nabadwip Sarangthem Singh
Priya Thiyam Devi
Hirakendu Basu
Sudeshna Saha
R K Singhal
Assessment of radioactivity in the soil samples from Imphal city, India, and its radiological implication
Radiation Protection and Environment
Absorbed gamma dose rates
alluvial soil
hazard index
Imphal
natural radioactivity
title Assessment of radioactivity in the soil samples from Imphal city, India, and its radiological implication
title_full Assessment of radioactivity in the soil samples from Imphal city, India, and its radiological implication
title_fullStr Assessment of radioactivity in the soil samples from Imphal city, India, and its radiological implication
title_full_unstemmed Assessment of radioactivity in the soil samples from Imphal city, India, and its radiological implication
title_short Assessment of radioactivity in the soil samples from Imphal city, India, and its radiological implication
title_sort assessment of radioactivity in the soil samples from imphal city india and its radiological implication
topic Absorbed gamma dose rates
alluvial soil
hazard index
Imphal
natural radioactivity
url http://www.rpe.org.in/article.asp?issn=0972-0464;year=2017;volume=40;issue=3;spage=149;epage=153;aulast=Sharma
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