Baseline concentration of Polonium-210 (<sup>210</sup>Po) in several biota from Jakarta Bay
Murdahayu Makmur, Wahyu Retno Prihatiningsih, Mohamad Nur Yahya
Abstract
Abstract Nuclide 210 Po is the main contributor to internal doses due to ingestion of radionuclide in humans, and enters the human body through the consumption of food, including seafood. The research aim is to analyse the activity of the 210 Po, in several species of biota that commonly available in the Jakarta Bay. The sample consist of tuna, tenggiri (mackerel), kakap merah (red snapper), Shrimp and green mussel were collected in 2017. The activity of 210 Po in the edible part of that biota ranged from 9.05 ± 3.05 to 137.37±37 Bq/kg of fresh biota, and the highest activity in the green mussel and the lowest for tuna. This result were comparable to those presented by other study from several regions of the world and the UNSCEAR data. The daily intake of 210 Po from these biota varied between 0.24 and 14.27 Bq year–1. The estimated dose of 210 Po intake ranged from 0.03 – 3.6 μSv year–1 are lower than the average natural radiation received by humans globally. This study contributes to the Indonesia baseline data of 210 Po in marine biota.