Radioactive cesium from the Chernobyl accident in the Greenland Ice Sheet.
Measurements of cesium-134 and cesium-137 in Greenland snow together with models of long-range transport have been used to assess radionuclide deposition in the Arctic after the Chernobyl accident. The results suggest that a well-defined layer of radioactive cesium is now present in polar glaciers, providing a new reference for estimating snow accumulation rates and dating ice core samples.
D000059:Accidents; D002588:Cesium Radioisotopes; D006116:Greenland; D008962:Models, Theoretical; D009688:Nuclear Reactors; D011847:Radioactive Fallout; D012914:Snow; D014455:Ukraine
D002588:Cesium Radioisotopes; D011847:Radioactive Fallout