| الوصف: |
Naturally Occuring Radioactive Materials (NORM) on earth consist of natural materials containing radioactive material. Nature-produced radionuclides are called primordial radionuclides, which are found in soil, plants, water and air. This research was conducted on rice plants in five locations in Malang, namely Singosari, Malang Kota, Karangploso, Kepanjen and Pujon. This research aims to measure 210Pb and 40K natural radionuclides in paddy fields and rice plants, to analyze the value of 210Pb and 40K natural radionuclide transfer factors from paddy fields to rice plants. The research used samples of rice plants and rice fields from five different sampling locations in the Malang area. The sample was prepared and measured using a gamma spectrometer at PTKMR BATAN, Jakarta. The results show that the value of 40K radionuclide concentration was higher than the concentration value of 210Pb due to the effect of fertilizer utilization on rice fields compared to contamination of Pb or heavy metals. The transfer value of 210Pb factor was obtained only in root sample from Karangploso location which is 21,00 while the transfer value of the 40K factor was obtained in all parts of the sample, in which the lowest value of 0,20 was obtained in seed samples from Malang city location and the highest value of 20,60 was found in the Pujon stem sample. |
