Radiological study on newly developed composite corn advance lines in Malaysia
Owing to population growth, there has been high demand for food across the world, and hence, different agricultural activities such as use of phosphate fertilizers, recycling of organic matters, etc, have been deployed to increase crop yields. In Malaysia, a total of nine composite corn advance line...
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| Main Authors: | , , , , |
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| Format: | Article |
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IOP Publishing: Hybrid Open Access
2014
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| Subjects: | |
| Online Access: | http://eprints.um.edu.my/12163/ http://iopscience.iop.org/1402-4896/89/12/125002 |
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| Summary: | Owing to population growth, there has been high demand for food across the world, and hence, different agricultural activities such as use of phosphate fertilizers, recycling of organic matters, etc, have been deployed to increase crop yields. In Malaysia, a total of nine composite corn advance lines have been developed at the Institute of Biological Sciences, University of Malaya and are being grown under different conditions with a bid to meet the average daily human need for energy and fiber intake. To this end, the knowledge of radioactivity levels in these corn advance lines are of paramount importance for the estimation of possible radiological hazards due to its consumption. Hence, the radioactivity concentrations of 226Ra, 228Ra and 40K in the corn have been determined using HPGe γ-ray spectrometry. The activity concentrations in the corn ranged from 0.05 to 19.18 Bq kg−1 for 226Ra, from 0.10 to 3.22 Bq kg−1 for 228Ra and from 26.4 to 129 Bq kg−1 for 40K. In order to ascertain the radiological safety of the population regarding maize consumption, the daily intakes of these radionuclides as well as the annual effective dose were estimated. The total effective dose obtained due to the ingestion of radionuclides via maize consumption is 15.39 μSv y−1, which is less than the international recommendations. |
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