Abstract
Present study is an attempt to identify the source of monazite deposits and understand the dynamics of natural radionuclides in the coastal environs of Alappuzha and Thiruvananthapuram districts, south west coast of India. The source of monaztite bearing black sands was identified by combining the activity concentration of the natural radionuclides, lithology and drainage systems of Alappuzha and Thiruvananthapuram districts. The activity concentrations of naturally occurring radionuclides (40K, 226Ra, and 232Th) in sand samples collected from the study area were determined using high efficiency NaI(Tl) detector. The radiological parameters viz. radium equivalent activity (Raeq), absorbed dose rate (D), annual effective dose (indoor and outdoor), annual gonadal dose equivalent, and excess lifetime cancer risk were also determined from the activity concentration and compared with the values reported for the other regions of the world. The results of these systematic investigations are presented and discussed in detail in the manuscript.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
