Radioactive cesium-137 from Chernobyl in Germany and Lithuania

 "Food from agricultural production is completely harmless in Germany, the radioactive pollution is extremely low here. Mushrooms and game from more polluted areas can actually have increased levels of cesium-137. This applies to bread stubble mushrooms, chestnut boletus or trumpet chanterelles, to name a few well-known edible mushrooms. These can have radioactivity of more than 1000 becquerels cesium-137 per kilogram of fresh mass. Peak values ​​of over 10,000 becquerels per kilogram can be found in wild boars. If you purchase food from the trade, a limit of 600 Becquerel per kilogram, which means that the consumer can rest assured that he is not buying any highly contaminated food. People who collect mushrooms themselves or the hunter who kills game themselves have to be careful, because in this case limit values ​​do not apply. 

 Why is the forest more contaminated than food from agricultural production? This is due to the different soil structure. There are clay minerals on agricultural land that can bind cesium very strongly. This means that the cesium is still there, but can hardly be absorbed by the plant. In the forest this is completely different due to the different soil structure. Here, cesium is integrated into a nutrient cycle and is more readily available to plants. That is the reason why we have different levels of contamination in the agricultural sector and in the forest ecosystem." 

We know a little about this pollution in Lithuania as well: 

 "Radioactive clouds passed over Lithuania in the first days after the accident, leaving significant precipitation of radioactive materials in the south-western and western part of the country: Varėna, Alytus and other southern and southwestern districts of Lithuania and Neringa and Klaipėda districts in the western part of the country.

Relatively large amounts of long-lived radioactive cesium Cs (up to 18.5 kBq m) have spread in these regions of the country, traces of which have been detected in soil, forest mushrooms and berries to date. This is because radioactive cesium Cs is constantly circulating in the forest ecosystem and is not removed from it for a long time. Contamination of forest wood, mushrooms, berries and game with cesium radionuclides remains dangerous for a long time, especially where the density of precipitation was high."