Radiation monitoring of foodstuffs and drinking water in the vicinity of the Rooppur Nuclear Power Plant (People’s Republic of Bangladesh)
2022
Panov, Aleksei Valerievich | Isamov, Nizametdin Nizametdinovich | Tsygvintsev, Pavel Nikolaevich | Geshel, Irina Viktorovna | Sidorova, Elena Valentinovna
The system of radiation monitoring of local foodstuffs and drinking water in the settlements of the area of the Rooppur Nuclear Power Plant was developed. An analysis of the results of a 4-year (2014–2017) cycle of studies on the assessment of the specific activity of natural (⁴⁰K, ²²⁶Ra, ²³²Th) and artificial (⁹⁰Sr, ¹³⁷Cs) radionuclides in the components of the diet of the population of the 30-km zone of influence of the nuclear power plant is presented. Thus, the specific activity of the most radiologically significant ¹³⁷Cs in cow's milk averages 0.05 Bq.L⁻¹, beef − 0.14, poultry − 0.09, and fish − 0.15 Bq.kg⁻¹. In cereals, the ¹³⁷Cs content varies in the range 0.2–0.6, vegetables 0.03–0.11, fruits 0.05–0.1 Bq.kg⁻¹ and is determined by the species characteristics of crops. It was noted that ⁹⁰Sr accumulates in food products to a greater extent than ¹³⁷Cs. In livestock production, this difference is 1.2–6.8 times, fish 1.5 times, grain 1.2–4.2, vegetables 1.5–8.2, fruits 1.8–5.8 times. In drinking water, the specific activity of ¹³⁷Cs is at the level of 0.05, ⁹⁰Sr − 0.03, ³H − 1.3 Bq.L⁻¹. The coefficients of accumulation of ⁹⁰Sr and ¹³⁷Cs in foodstuffs of animal and plant origin have been calculated.
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