Gross Alpha and Gross Beta Activity Levels of Holocene Sediments Between Şarkoy and Murefte (Tekirdağ)

Authors : Melike ÖNCE, Nursel KAM

Pages : 63-69

Doi:10.30931/jetas.602200

View : 21 | Download : 11

Publication Date : 2019-08-31

Article Type : Research Paper

Abstract :Background and anthropogenic ionizing radiations are main sources of environmental radioactivity exposing human beings. Background radiation occurs as a result of cosmogenic and terrestrial radiation, while anthropogenic origins are man-made radiation. In this context, gross alpha and beta activity of sea sediment samples collected at 7 different stations in the research region insert ignore into journalissuearticles values(Şarköy and Mürefte); were analyzed using the low-background counter insert ignore into journalissuearticles values(Berthold, LB 770 10- channel α−β low-level counter);. Also, the relationship between the abundance of radioactive isotopes and alpha and beta activity were discussed in this paper. As a result, the average gross alpha and beta activity was determined as 218.18  ±  14.9 Bq kg-1 and 579.00  ±  23.9 Bq kg-1, respectively. Maximum gross alpha value in investigation area 301  ±  15.9 Bq kg-1 insert ignore into journalissuearticles values(Şarköy Port);, and the lowest value is 989  ±  16.5 Bq kg-1 insert ignore into journalissuearticles values(Şarköy Port);. When these values were compared with Bosna River results, both gross alpha and gross beta values were found to be high [3,4]. The main reason why gross alpha and beta concentrations are generally high is that the fertilizers used in agriculture contain uranium, thorium and their degradation products and natural 40K.
Keywords : Gross alpha, gross beta, Marmara Sea, sediment, radioactivity