Radiocaesium Contamination of Mushrooms at High- and Low-Level Chernobyl Exposure Sites and Its Consequences for Public Health

Abstract

We compare the specific activities of 137Cs and 40K in stipes and caps of three different common mushroom species (Xerocomus badius, Russula ochroleuca and Armillariella mellea) measured at the Czech Chernobyl hot spot in the Opava area (Silesia) and at a low-exposed site at the Beskydy mountains in 2011. The highest values of 137Cs were found in caps of Xerocomus badius and Russula ochroleuca in the Opava area (11.8 and 8.77 kBq/kg, respectively). The source of 137Cs was verified by the measurement of the 134Cs/137Cs ratio. Based on our results, we estimate an effective dose per year due to radiocaesium intake in the two investigated areas for Xerocomus badius, one of the most popular edible mushrooms in the Czech Republic. In 2011, the effective dose reached the maximum value of 0.102 mSv in the Opava area and 0.004 mSv at the low-exposed site at the Beskydy mountains. Therefore, it does not represent a significant risk for public health.

An Annealing Model Analysis and Research on the In of Community Public Sports on Economic Development

“…Prior to the analysis of intersectoral data institutions in the community, public sports, all data institutions should be classified and judged according to applicable standards. In this paper, the metropolis acceptance criteria (Harkut et al [8]) are adopted. If community-based public sports meet real needs, relevant data will be collected, otherwise, data organizing data will not be accepted.…”

Current 137Cs accumulation by mushrooms in different site types of scots pine forests of Ukrainian Polissia

“…In the Czech Republic, in areas with the highest levels density of contamination with 137 Cs (Silesia), the content of 137 Cs was studied separately in caps and stipes of mushroom species -Imleria badia, Russula ochroleuca and Armillaria mellea. However, the levels of 137 Cs ground deposition were not given [2]. The highest values of 137 Accumulation of 137 Cs by fresh fruiting bodies of Suillus luteus in sampling sites in the Exclusion Zone of the Chornobyl NPP and in some other areas of the Kyiv region outside the Exclusion Zone in the years 1986 -2020 was studied [17].…”

“…Currently, despite more than 36 years since the Chornobyl disaster, radioactive contamination of macromycetes attracts the attention of researchers in Europe: Italy [1], Czech Republic [2], Slovakia [3], Poland [4,5], Bulgaria [6], Turkey [7]. After the accident at the Fukushima Nuclear Power Plant, the radioecology of macromycetes obtained a new development in Asia -Japan [8,9] and China [10].…”

“…After the accident at the Fukushima Nuclear Power Plant, the radioecology of macromycetes obtained a new development in Asia -Japan [8,9] and China [10]. The largest number of studies on both continents is devoted to edible species of mushrooms, which are characterized by significant levels of 137 Cs accumulation and when frequently used, can cause significant levels of internal radiation exposure in the population [2,11]. At the same time, researchers emphasize the wide interspecies differences in 137 Cs accumulation by mushroom fruiting bodies of different species even in a separate forest site type (FST) [12]; by the same mushroom species in different FST, at different densities of the territory radioactive contamination [13]; and in different periods after the Chornobyl NPP accident [12,14].…”