Sources of monazite patches and dynamics of radionuclides concentration in the high background radiation areas of Kollam District, Kerala

The present study attempts to provide a proper explanation to define the monazite source region and reason for its enrichment in coastal belts of Kollam district, Kerala. As part of that, primary data on enrichment of naturally occurring radionuclides viz. 40K, 226Ra, and 232Th in sand samples were collected from the study area and has been measured using NaI(Tl) detector. The radiological parameters were also calculated and compared with the Indian and World average values suggested by the UNSCEAR. The local variations in enrichment then connected with local lithology, drainage and sea wave direction for understanding the source and path of distribution. Connecting the dynamics of radioactivity concentration in a Geospatial study had finally provided details on source and locations of the parent material.