According to Brown, the plants at Hanford and Mayak, over a period of four decades, “both released more than 200 million curies of radioactive isotopes into the surrounding environment -- twice the amount expelled in the Chernobyl disaster in each instance”.Most of this radioactive contamination over the years at Hanford and Mayak were part of normal operations, but unforeseen accidents did occur and plant management kept this secret, as the pollution continued unabated.Bulk organic stable isotope analysis indicates a relatively stable carbon isotope signal with δC values ranging between -27‰ and -30‰.Stable nitrogen isotope values increased from 1-2‰ at the bottom of the core to 5‰ at the top of the core.The 137Cs technique is the only technique that can be used to make actual measurements of soil loss and redeposition quickly and efficiently. By understanding the background for using the 137Cs technique to study erosion and sediment deposition on the landscape, scientists can obtain unique information about the landscape that can help them plan techniques to conserve the quality of the landscape. Contiguous coarse-grained sediments were seen in the middle of most cores in the Loch of Brow.
These measurements use magnetic sector inductively coupled plasma mass spectrometry for rapid determination of Pu activities and Pu atom ratios are in the range 0.15–0.20, in agreement with the expected range of 0.166–0.194 for Northern Hemisphere fallout, and do not suggest the presence of other contributing sources.
Please provide citations for any missing publications to Jerry C. A quarter century of research has shown that measurements of the spatial patterns of radioactive fallout 137Cesium can be used to measure soil erosion and sediment deposition on the landscape.
INTRODUCTION Soil erosion and its subsequent redeposition across the landscape is a major concern around the world.
Research should continue on the development of the technique so that it can be used more extensively to understand the changing landscape.
Cs to the study of soil erosion and the subsequent redeposition of the eroded particles on the landscape.