Premium
Radiological risk assessment of fish feed and feed raw materials
Author(s) -
Yilmaz Mesut,
Ozmen Suleyman Fatih
Publication year - 2020
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/are.14523
Subject(s) - radiological weapon , raw material , aquaculture , effective dose (radiation) , fish <actinopterygii> , natural radioactivity , biology , zoology , dose rate , commercial fish feed , toxicology , veterinary medicine , radionuclide , fishery , nuclear medicine , radiochemistry , ecology , medicine , chemistry , physics , quantum mechanics
In this study, natural radioactivity concentrations of fish feed and feed raw materials were assessed. Several feeds and raw materials were provided from the suppliers who dominate the aquaculture sector. 226 Ra, 232 Th and 40 K concentrations were determined by using a high‐purity germanium detector. The measured activity concentrations of samples ranged from 3.28 ± 0.27 to 15.90 ± 1.36, from 1.27 ± 0.10 to 12.07 ± 1.21 and from 52.01 ± 2.60 to 1,158.96 ± 54.42 Bq/kg for 226 Ra, 232 Th and 40 K respectively. The gamma dose rate and annual effective dose rate of samples were calculated to be in the range of 1.99–50.47 nGy/h and 2.44–61.89 µSv/yr respectively. Since the calculated radiological risk parameters of the samples were lower than the world wide average values, the radiation hazard is insignificant for human handlers.