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Information × Registration Number 0210U006157, 0106U005640 , R & D reports Title Features of distribution of radio-active elements in the agricultural ecological systems of the Chernigov region popup.stage_title Head Melnik Anatoliy, Registration Date 02-06-2010 Organization Chernigovskoy regional state project-technological center of guard of fertility of soils and quality of products popup.description2 Report about research work: 65 pages, 19 tables, 9 pictures, 24 literary sources Objects of researches are soils plant-grower products, mushrooms, мedicinal нerbs. A research prupose is to define territories in II, III and IV zones of radioactive pollution on which caesium-137 and strontium-90 contents in soil and agricultural production reaches critical levels. To define the list of farms and settlements where needed regular monitoring of these radionuclides. Research methods and equipment - caesium-137 in soil determined by spectrometry method on the analyzer of impulses АІ-1024-95 with the stintillation detector БДЕГ- 2-23; in plants - on the betta-radiometer РУБ-014ПС. Measuring of gamma-background was conducted by a dosimeter РМ1701М. Strontium-90 defined by radio-chemistry method on the device УМФ-2000 and spectrometer "Gamma-plus". Data of radiological inspection of soils in 24 farms on the area of 69,5 thousand hectares was generalized. The density of soils pollution by radiocaesium more than 1 Ci/km2 has been found on 37 % of the surveyed areas. Weighted average value of pollution is 1.0 Ci/km2. Average level of green mass pollution is 78 Bq/kg and it limits 20-1587 Bq/kg. Above the permissible level have been polluted 7 % from analyzed products. Pollution of soil by strontium-90 above 0,15 Ci/km2 is revealed on 22 % of the surveyed areas, weighted average value of pollution is 0,1 Ci/km2. Pollution of green mass by strontium-90 is in limits 1-309 Bq/kg, having average value of 25 Bq/kg. Surveys of forest ОКП "Чернигивоблагролис" on the area of 13,7 thousand hectares have been implemented. The density of soil pollution by caesium-137 more than 1 Ci/km2 has been found on the area of 2,5 thousand hectares (38 %), strontium-90 more than 0,15 Ci/km2 pollutes 14% of forests. Forest products with levels of pollution by radionuclides above the permissible were detected. Maximum level of mushrooms pollution by caesium exceeds the standard in 14 times. Almost all the selected samples of medicinal herbs for the content of strontium-90 exceed the norm. The maximum value of pollution is 550 Bq/kg. Correlation analysis was carried out with results of researches. Results of researches are shown executive government, farms and the citizens. SOIL, FERTILITY, RADIONUCLIDES, PLANT-GROWER PRODUCTS Product Description popup.authors Глибовець Ірина Олегівна Корж Ірина Анатоліївна Кулик Наталія Андріївна Матухно Юрій Данилович Приходько Анатолій Миколайович Проценко Олексій Іванович Хмарна Світлана Олексіївна Шабанова Ірина Ігорівна popup.nrat_date 2020-04-02 Close