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Estimation of Natural Radionuclides in the Soil Samples from the Multivariety Belt Comprising of SAS Nagar, Rupnagar and Nawanshahr Districts of Punjab, India |
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PP: 45-51 |
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doi:10.18576/jrna/020202
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Author(s) |
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Rakesh Uppal,
Rohit Mehra,
H. S. Sahota,
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Abstract |
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| Gamma ray spectrometry is efficient, convenient and cost effective means of estimation of radionuclides in the soil. The radioactivity concentration for naturally occurring 226Ra, 232Th and 40K has been measured for Sahibzada Ajit Singh (SAS) Nagar, Rupnagar and Nawanshahr (SBS Nagar) districts of Punjab using Gamma ray spectroscopy. The variation in activity concentration for naturally occurring 226Ra, 232Th, and 40K is from 20±5 Bq kg-1 to 49±6 Bq kg1,23±6Bq kg-1 to 61±8Bq kg-1 and 292±27 Bq kg-1 to 627±18 Bq kg-1 with average values of 33±6Bqkg-1, 39±7 Bq kg-1 and 399.7±16 Bq kg-1 respectively. After the analysis of these samples, radium equivalent activity is calculated to assess the radiation hazards which ranges between 92 Bq kg-1 to 163 Bq kg-1 with an average value of 117 Bq kg-1 which is lower than the safe limit of 370 Bq kg-1. The absorbed dose ranges from 9 nGyh-1 to 23 nGyh-1, 14 nGyh-1to 38 nGyh-1 and 12 nGyh-1 to 26 nGyh-1 for 226Ra, 232Th, and 40K respectively. The total absorbed dose in these districts of Punjab varies from 43 nGyh-1 to 79 nGyh-1. The variation of hazard indices for outdoor and indoor is from 0.25 to 0.45 and 0.31 to 0.54 for Hex and Hin respectively. As the radiation indices is less than 1, so the soil of studied area may not pose any health hazard to the residents of the area. |
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