In this work, we investigated distribution of the natural and artificial radioactive nuclides and level of the regional background in soil in Busan. For 45 points, the environmental radioactivity concentration of Busan surface soil is 14.38 ∼ 57.03 ...
In this work, we investigated distribution of the natural and artificial radioactive nuclides and level of the regional background in soil in Busan. For 45 points, the environmental radioactivity concentration of Busan surface soil is 14.38 ∼ 57.03 (mean : 33.95) Bq·kg^-1 for ^226Ra, 22.41 ∼ 86.58 (mean : 51.08) Bq·kg^-1 for ^228Ra, 223.64 ∼ 1332.30 (mean : 668.61) Bq·kg^-1 for ^40K and <0.33 ∼ 33.37 (mean : 13.74) Bq·kg^-1 for ^137Cs. Also, in order to investigate vertical distribution for radioactivity, we examined radioactive concentration with mountain height. But there was no correlation between radiaoactivity distribution and mountain height. The ^226Ra/^228Ra and ^228Ra and ^226Ra/^40K concentration ratios were 0.68 ± 19% and 0.06 ± 34%, respectively.