河州受辐射污染地区人口辐射与卫生综合监测。

V V Vasylenko, M S Kuriata, V V Morozov, L O Lytvynets, M S Kramarenko, A B Bilonyk, L P Misсhenko, Z S Man, V Sh Schwartzman, T O Volkernіuk
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引用次数: 1

摘要

目的:通过对参照点2020年辐射卫生综合监测,确定事故现期里夫纳州放射污染区人群辐射剂量形成的关键因素,并评价其对剂量形成的影响。材料和方法:在Rokytne区的Stare Selo、Vezhytsia、Perekhodychi和Drozdyn村对Rivne州(省)的定居点进行了全面的辐射和卫生监测,这些村庄在ChNPP事故发生后登记的辐射剂量最高。研究于2020年9月进行。使用全身计数器(WBC)进行测量(n=696, 318名成人和378名儿童)以确定内辐射剂量。48份牛奶样本、45份土豆和蔬菜样本以及35份野生产品样本在当地农场收集,并测量了137Cs和90Sr的含量。对研究定居点的居民(n= 229,140名成年人和89名儿童)进行了关于主食消费水平的访谈。对所有研究住区的外辐射剂量进行了评估。应用了数学、剂量学和放射化学方法。结果与结论:与RCT标准1 mSv·year-1相比,2020年Rivne州人群的年有效辐射剂量主要是由成人不超过1.24 mSv·year-1和儿童不超过0.65 mSv·year-1引起的。与2017年秋季wbc监测结果相比,调查居民点的年内辐射剂量进一步下降1.2-1.9倍。后者证实了2011年以来切尔诺贝利事故现阶段辐射水平逐渐降低的时间模式。从牛奶和野生蘑菇中摄入137Cs,传统上占据了Rivne Polissya地区饮食的重要部分,并且具有持续高水平的放射性铯污染,仍然是Rivne州被调查定居点居民体内辐射剂量形成的关键因素。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
COMPREHENSIVE RADIATION AND HYGIENIC MONITORING IN POPULATION OF THE RIVNE OBLAST RADIOLOGICALLY CONTAMINATED TERRITORIES.

Objective: The key factors identification in radiation dose formation in population of radiologically contaminatedareas of Rivne oblast in the current period of accident through comprehensive radiation and hygienic monitoring inreference settlements in 2020 and estimation of their impact on dose formation were the study objectives.

Materials and methods: Comprehensive radiation and hygienic monitoring of settlements in Rivne oblast(province) was provided in Stare Selo, Vezhytsia, Perekhodychi, and Drozdyn villages of Rokytne district, where thehighest radiation doses were registered after the ChNPP accident. Studies were conducted in September 2020.Measurements (n=696, 318 adults, and 378 children) were performed using the whole body counters (WBC) to deter-mine the internal radiation doses. The 48 samples of milk, 45 samples of potatoes and vegetables, and 35 samplesof wild products were collected in local farms and measured for the 137Cs and 90Sr content. Residents of the studiedsettlements (n=229, 140 adults, and 89 children) were interviewed about the levels of consumption of staple food-stuffs. External radiation doses were evaluated in all the studied settlements. Mathematical, dosimetric, and radio-chemical methods were applied.

Results and conclusions: Annual effective radiation doses of the Rivne oblast population in 2020 were formedmainly due to internal radiation ones that not exceeded 1.24 mSv · year-1 in adults and 0.65 mSv · year-1 in childrenagainst the RCT criterion of 1 mSv · year-1. Further 1.2-1.9-fold decrease in the annual internal radiation doses vs.the results of WBC-monitoring in autumn of 2017 was registered in the surveyed settlements. The latter confirmeda time pattern of radiation levels gradual reduction at the current stage of Chornobyl accident since 2011. Intakeof 137Cs with milk and wild mushrooms, which traditionally occupy a significant part of diet in the Rivne Polissya areaand have consistently high levels of radioactive cesium contamination, remains a key factor of internal radiationdose forming in residents of the surveyed settlements of Rivne oblast.

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Problemy radiatsiinoi medytsyny ta radiobiolohii
Problemy radiatsiinoi medytsyny ta radiobiolohii Medicine-Radiology, Nuclear Medicine and Imaging
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