Comparative Summary of Background Radiation in Singhbhum and Patna (in mSv)

Abstract

This paper presents a comparative assessment of natural background radiation in Singhbhum, Jharkhand, and Patna, Bihar, India. Environmental radiation originates from both natural and anthropogenic sources, with natural radiation being the primary contributor to annual exposure. Singhbhum, characterized by uranium-rich geological formations and mining activities, exhibits elevated gamma and radon radiation levels compared to the low-background alluvial plains of Patna. In addition to natural sources, anthropogenic contributions from medical imaging, including X-rays, CT scans, and diagnostic procedures, add to the total annual effective dose for residents in both regions. While medical radiation exposure is generally con- trolled, its cumulative impact is more pronounced in Singhbhum due to already elevated natural background levels, potentially increasing long-term stochastic health risks. This paper provides comprehensive annual effective dose estimates, discusses the rela- tive contributions of natural and medical sources, and highlights health implications, emphasizing the influence of local geology, land use, and healthcare practices on overall radiation exposure.