Assessment of Radiological Doses from the Presence of 226Ra, 232Th and 40K in the Soil Samples of Nawanshahar and Rupnagar Districts of Punjab (India)

Indian Journal of Pure & Applied Physics

article

P Bangotra¹  R Singh²  A Ashish³  R Mehra⁴  M Prasad⁵  N L Singh¹ 

[1] Department of Physics, NetajiSubhas University of Technology;Department of Physics, SSBSR, Sharda University;Department of Radiology, SSAHS, Sharda University;Department of Physics, Dr. BR Ambedkar National Institute of Technology;Chitkara University School of Engineering and Technology, Chitkara University

关键词: Radium;    Thorium;    Potassium;    Radiological doses;    Risk assessment;    Toxicity;    Article;   

DOI  :  10.56042/ijpap.v61i6.2410

来源: National Institute of Science Communication and Information Resources

【 摘 要 】

Apart from Uranium (238U), other natural radionuclides such as radium (226Ra), thorium (232Th) and potassium (40K) are considered to be carcinogenic due to their major contribution of radiological doses to human beings. This study revealed the measurement of primordial radionuclides (226Ra, 232Th, 40K) from the Nawanshahar and Rupnagar districts of Punjab by using a gamma beta spectrometer. The activity concentration of 226Ra, 232Th and 40K in the studied region was ranged from 18 ± 5 Bq kg-1 to 37 ± 6 Bq kg-1, 23 ± 5 Bq kg-1 to 54 ± 8 Bq kg-1 and 273 ± 23 Bq kg-1 to 472 ± 37 Bq kg-1 respectively. The distinct radiation hazards parameters as radium equivalent (RaEq), absorbed dose rate (AD) and annual effective doses (AEDE) were estimated for radiological risk assessment. The absorbed dose levels of 226Ra, 232Th and 40K in the studied area ranged from 8.74 nGyh-1-15.33 nGyh-1, 14.6 nGyh-1-33.7 nGyh-1, and 11.31 nGyh-1 -18.93 nGyh-1, respectively. The annual effective doses in the studied region were 0.32 mSv y-1 (indoor) and 0.8 mSv y-1 (outdoor), respectively. The estimated hazard indices in the studied region were below unity showing that exposure to natural radionuclides in the soil is not a problem in the areas from a radiation hazards point of view.

【 授权许可】

Unknown