Radioactivity levels in the mostly local foodstuff consumed by residents of the high level natural radiation areas of Ramsar, Iran
| Autor: | Masud Yunesian, Mohammad Reza Kardan, Ali Akbar Salehi, Nasrin Fathabadi, Ramin Nabizadeh Nodehi, Mahtab Karimi, Kazem Naddafi, Saeedeh Sadat Hosseini, Mohammad Reza Deevband, Molood Gooniband Shooshtari |
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| Rok vydání: | 2017 |
| Předmět: |
Adult
Male Wet weight Health Toxicology and Mutagenesis α spectrometry Iran 010501 environmental sciences Biology Radiation Dosage 01 natural sciences 030218 nuclear medicine & medical imaging Toxicology 03 medical and health sciences 0302 clinical medicine Radiation Monitoring Environmental protection Activity concentration Background Radiation Humans Environmental Chemistry Food Contamination Radioactive Waste Management and Disposal 0105 earth and related environmental sciences Radionuclide General Medicine Radiation Exposure Pollution Radioactivity Reference values Environmental radioactivity Female Leafy vegetables Radioactive Pollutants |
| Zdroj: | Journal of Environmental Radioactivity. :209-213 |
| ISSN: | 0265-931X |
| DOI: | 10.1016/j.jenvrad.2016.12.011 |
| Popis: | Among High Level Natural Radiation Areas (HLNRAs) all over the world, the northern coastal city of Ramsar has been considered enormously important. Many studies have measured environmental radioactivity in Ramsar, however, no survey has been undertaken to measure concentrations in the diets of residents. This study determined the 226 Ra activity concentration in the daily diet of people of Ramsar. The samples were chosen from both normal and high level natural radiation areas and based on the daily consumption patterns of residents. About 150 different samples, which all are local and have the highest consumption, were collected during the four seasons. In these samples, after washing and drying and pretreatment, the radionuclide was determined by α-spectrometry. The mean radioactivity concentration of 226 Ra ranged between 5 ± 1 mBq kg −1 wet weight (chino and meat) to 725 ± 480 mBq kg −1 for tea dry leaves. The 226 Ra activity concentrations compared with the reference values of UNSCEAR appear to be higher in leafy vegetables, milk and meat product. Of the total daily dietary 226 Ra exposure for adults in Ramsar, the largest percentage was from eggs. The residents consuming eggs from household chickens may receive an elevated dose in the diet. |
| Databáze: | OpenAIRE |
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