Measurements of Natural Radionuclides in Vegetables by Gamma Spectrometry

Abstract

This article reports the activity of natural radionuclides uranium, thorium, and potassium, in different vegetables in Malaysia, measured with a p-type high-purity germanium detector (HPGe). Potassium radionuclides were the most prevalent element in the tested samples, whose activity ranges from 138.89 to 2660.31 Bq/kg. Meanwhile, the activity of uranium was found to be within the minimum detection limit (MDL) to 46.94 Bq/kg, and thorium from <MDL to 192.98 Bq/kg. The annual dose was in the range 0.001 to 0.06 mSv, within the worldwide range of 0.29 mSv/year for ingestion of vegetables.

Assessment of Radionuclides in Some Fruits from Niger Delta, Nigeria and Its Health Risks

“…Variations in the values of the ELCR due to ingestion of fruits are due to the different conversion factors for different age category. This is in agreement with Priharti, et al [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30]. Also the internal hazard index for all the fruits from different states in Niger Delta showed that the internal hazard due to Apricot is very high.…”

Radiological Risk Assessment From the Intake of Vegetables and Fruits in Malaysia

“…From eleven different countries, 58 types of vegetables have been studied with seven common types namely spinach, carrot, cucumber, tomato, pumpkin, green bean and potato [6][7][8][9][10][11][12][13][14][15][16]. However in Malaysia, only 16 types of vegetables have been studied with spinach and cucumber as the common type [17,18]. Studies conducted in ten different countries reported that 26 types of fruits have been studied with eight common types namely apple, pear, orange, mango, banana, papaya, grapes and watermelon [6][7][8][9][10][11][12][13][14][15][16].…”

Study on Radionuclides from Soil to Onion at Johor and Perak, Malaysia

“…The research on activity and the mobility of natural radionuclide in the environment is very important in several scientific fields. In Malaysia, only a little record of radioactive contamination of the environment has been reported [9][10][11]. Recently, the transfer of natural radionuclides from soil to groundnut crops has been investigated [12].…”