University of Novi Sad, Faculty of Sciences, Department of Geography, Tourism and Hotel Management, Trg Dositeja Obradovića 3, 21000, Novi Sad, Serbia.
University of Novi Sad, Faculty of Sciences, Department of Physics, Trg Dositeja Obradovića 4, 21000, Novi Sad, Serbia.
Chemosphere. 2021 Feb;264(Pt 2):128471. doi: 10.1016/j.chemosphere.2020.128471. Epub 2020 Oct 5.
There is a dilemma whether the Chernobyl accident is the main source of this anthropogenic radionuclide in the region of Vojvodina, Northern Province of Serbia. The difference compared to the other dominant source of radiocaesium in the environment, the nuclear weapon tests, is lying in the local character of contamination due to accidents, which implies it's highly dependent on meteorological parameters, such as precipitation and wind in the area at that time. According to published data, the average value of surface contamination by radiocaesium on the territory of the former Yugoslavia after the Chernobyl accident was several times higher than the estimated contamination by nuclear testing (1945-1963). The main aim of this research is to explore possible correlations of the spatial distribution of precipitation from April 1986 to December 1987 with the deposition of radiocaesium in the surface soil to justify this claim in the absence of data on caesium deposition before the Chernobyl accident for the Vojvodina region. The database of Cs content in Vojvodina soil and precipitation for this region during the timeframe of interest were used. From a total of 245 precipitation stations in Vojvodina, 164 to 244 precipitation stations were selected for analysis in conditionals from different time scale aspects and data validation. The best correlation between amounts of total precipitation and Cs content in surface soil obtained for two rainy periods 2nd-5th and 7th-21st May 1986. Further cluster analysis separated four different regions according to Cs deposition and precipitation for the mentioned rainy period which could be applied in the field of soil erosion assessment on the local and regional level.
在塞尔维亚诺维萨德地区，是否是切尔诺贝利事故导致该地区这种人为放射性核素的主要来源，这是一个难题。与环境中放射性铯的另一个主要来源——核武器试验相比，其区别在于事故造成的污染具有局部特征，这意味着它高度依赖当时该地区的气象参数，如降水和风向。根据已公布的数据，在前南斯拉夫领土上，切尔诺贝利事故后表面放射性铯污染的平均值比核试验（1945-1963 年）估计的污染高出数倍。这项研究的主要目的是探索 1986 年 4 月至 1987 年 12 月期间降水的空间分布与表层土壤中放射性铯沉积之间的可能相关性，以证明在缺乏前切尔诺贝利事故时期伏伊伏丁那地区铯沉积数据的情况下，这一说法的合理性。本研究使用了伏伊伏丁那土壤中 Cs 含量数据库和该地区在此期间的降水数据。在总共 245 个伏伊伏丁那降水站中，根据不同时间尺度和数据验证条件，选择了 164 至 244 个降水站进行分析。在两个降雨期（1986 年 5 月 2 日至 5 日和 7 日至 21 日），总降水量与表层土壤中 Cs 含量之间的相关性最好。进一步的聚类分析根据上述降雨期的 Cs 沉积和降水，将四个不同地区分开，可应用于当地和区域土壤侵蚀评估领域。
