This map portrays soil contamination on the territory of Ukraine with cesium-137, a radioactive isotope, as of April 2011. Cesium-137 has a half-life of approximately 30 years (which means that 30 years after its release, half of it will have…
This key refers to other maps that depict the extent of contamination from the Chernobyl disaster. Interestingly, it indicates that maps of Cesium-137 distribution were much more detailed than those of Strontium-90 from the same month and year; while…