| Title article: | Radiometric assessment of agricultural products in selected agricultural enterprises of the Kaluga region |
|---|---|
| UDC: | 619:616-001.28/.29 |
| Section: | AGRICULTURE |
| Authors: | Yunusov Ilnar R.;Ishmukhametov Kamil T.;Rakhmatullina Gulnaz I. |
| Full article in PDF: | скачать |
Introduction. Based on the results of an assessment of the available literature data and our own research on the radiation situation in the Kaluga region in the post-accident period, reference points were selected for conducting a radiation-hygienic examination of veterinary surveillance facilities. Materials and methods. Two agricultural enterprises were selected, one of which is located in the zone of the Chernobyl emergency release and the second in the zone of possible influence of two enterprises of the first category of potential radiation hazard. In selected agricultural enterprises, the ambient dose equivalent rate of gamma radiation was studied and individual samples of crop products and soil were selected for radiometric studies. Research results. It has been established that the ambient dose equivalent rate of external gamma radiation in the Borovskoy district is 0.09‒0.11 μSv/h, in the Zhizdrinsky district ‒ 0.09‒0.12 μSv/h. The average content of cesium-137 in soil samples from the Borovskoy district is 24.4±1.09 Bq/kg, from the Zhizdrinsky district ‒ 54.7±4.21 Bq/kg. Of the studied samples of roughage from the Zhizdrinsky region, the highest content of radionuclides was recorded in alfalfa hay ‒ cesium-137 ‒ 4.2 Bq/kg and strontium-90 ‒ 2.9 Bq/kg, on average for samples 3.4 Bq/kg and 2.6 Bq/kg, respectively, at KU-94 for roughage and succulent feed 600 Bq/kg (137Cs) and 100 Bq/kg (90Sr). The specific activity of succulent feed was on average 1.5 times higher than that of roughage and was 6.0 Bq/kg for cesium-137 and 3.5 Bq/kg for strontium-90. The content of cesium and strontium in the concentrates was 2.5 and 1.5 Bq/kg at KU-94 for concentrates of 600 Bq/kg (137Cs) and 65 Bq/kg (90Sr). The average content of radionuclides in roughage from the Borovskoy region was 2.3 Bq/kg ‒ radiocesium and 1.3 Bq/kg - strontium-90, in succulent feed, 3.0 and 1.6 Bq/kg, respectively, in concentrates - 1.5 and 1.2 Bq/kg. Conclusion. All samples complied with established standards and therefore could be used without restrictions.
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