Specific Activities of Natural Radionuclides in Beach Sand Samples from Ratchadapisek Beach Nong Chik District in Pattani Province, Thailand

Abstract

The specific activities of natural radionuclides (⁴⁰K ²²⁶Ra and ²³²Th) in 50 beach sand samples collected from Ratchadapisek beach Nong Chik district  in Pattani Province in southern region of Thailand, have been measured and analyzed. It was found that the specific activities of ⁴⁰K ²²⁶Ra and ²³²Th ranged from  200-703, 22-47 and 4-23 Bq/kg and the average values of 428 ± 14, 31 ± 8 and 11 ± 2 Bq/kg, respectively. Furthermore, four radiological hazard indices were evaluated for this area by using the ⁴⁰K, ²²⁶Ra and ²³²Th median values. Moreover, the results were also compared with the Office of Atoms for Peace (OAP) annual report data, Thailand and global radioactivity measurement and evaluations.