Environmental radioactivity study of Austrian and Bavarian forest ecosystems: Long-term behaviour of contamination of soil, vegetation and wild boar and its radioecological coherences

¹³⁷Cs and ⁴⁰K in soil, vegetation and flesh of wild boar samples from Austrian and Bavarian regions were investigated by gamma-ray spectrometry and ⁹⁰Sr in bones of wild boar with Liquid Scintillation Counting (LSC) after radiochemical separation. The soil core profiles revealed that 70-97% of the soil caesium content is still accumulated in the 0-10cm soil depth. From all vegetation samples the mushrooms, particularly the bay boletus showed the highest ¹³⁷Cs contamination. The activity concentration of ¹³⁷Cs in muscle tissue of boar ranged from 14.9±1.5Bq/kg (Bavaria) to 4711±377Bq/kg (Lower Austria). In the bones of wild boars, ⁹⁰Sr activity concentration ranged from 1.4±0.2Bq/kg (Bavaria) to 70.3±10.5Bq/kg (Upper Austria).

Long-term environmental radioactive contamination of Europe due to the Chernobyl accident - Results of the Joint Danube Survey 2013

In the course of the Joint Danube Survey 3 (JDS3), coordinated by the International Commission for the Protection of the Danube River (ICPDR), laboratory ships travelled 2375km down the Danube River engaging in sampling, processing and on-board analyses during the summer of 2013. The results of the radiometric analysis of ⁹⁰Sr, ¹³⁷Cs and natural radionuclides in recent riverbed sediment are presented. The activity concentrations of ⁹⁰Sr and ¹³⁷Cs in Danube sediments have been found below 100Bq/kg.

catena-Poly[[manganese(II)-tris-(μ-bet-aine-κO:O')] tetra-bromido-manganate(IV)

The title compound, [Mn(C₅H₁₁NO₂)₃]·MnBr₄, contains polymeric cationic chains of distorted MnO₆ octa­hedra and bridging betaine mol­ecules, running parallel to the a axis. There are two distinct Mn²⁺ cations in the chain, both with site symmetry . Distorted [MnBr₄]²⁻ tetra­hedra occupy the spaces between the chains.