Radiation-induced Features in the Blood System in Newly Formed Populations of Small Rodents from the Drained Areas of the Chernobyl Cooling Pond
N. Riabchenko, A. Lypska, N. Rodionova, O.Ganzha, O. Burdo (Institute for Nuclear Research, NAS, Ukraine)
Since the decommissioning of the cooling pond in the Chernobyl Exclusion Zone, significant areas of drylands formed by the bottom sediments with different levels of radiation pollution has been formed. This led to the emergence of new floristic complexes with a gradual increase in the diversity of terrestrial fauna. The purpose of our work was to study hematological and cytogenetic parameters in murine rodents (Apodemus and Myodes genera) that inhabited the drained areas of the cooling pond.
Radioecological characterization of the experimental sites with different levels of radiation contamination was carried out, the content of incorporated 90Sr, 137Cs in animals was determined.
In blood system of animals from labile ecosystem of cooling pond, both pathologic features and activation of compensatory processes was revealed; an increased frequency of micronuclei in bone marrow cells was registered. Species features in the reaction of the hematopoietic system to chronic radiation exposure.
チェルノブイリ冷却池の排水区域からの小さな齧歯動物の新しく形成された集団における血液系の放射線誘発特徴
N. Riabchenko, A. Lypska, N. Rodionova, O.Ganzha, O. Burdo (Institute for Nuclear Research, NAS, Ukraine)
チェルノブイリの立入禁止区域の冷却池の廃止措置以降、放射能汚染のレベルがまちまちな底質によって形成された広大な乾燥地が形成されている。その結果、新たな植物群落が形成され、陸生動物相の多様性が徐々に増加した。我々の研究の目的は、冷却池の排水区域に生息するネズミ目（アカネズミ属及びヤチネズミ属）の血液学的及び細胞遺伝学的パラメータを研究することであった。放射能汚染レベルがまちまちな実験場の放射生態学的特性調査が実施され、動物中の90Sr、137Csの含有量が測定された。冷却池の不安定な生態系の動物の血液系では、病理学的特徴と代償プロセスの活性化の両方が明らかになった。骨髄細胞の小核の頻度増加が確認された。種は慢性放射線被ばくに対する造血系の反応に特徴がある。
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