title: Observations on lake sediments using fallout  137 Cs as a tracer.
mesh_terms: D002587:Cesium Isotopes / Q000032:analysis*; D004739:England; D005618:Fresh Water / Q000032:analysis; D011847:Radioactive Fallout / Q000032:analysis*; D014878:Water Pollution, Radioactive / Q000032:analysis
chemical_list: D002587:Cesium Isotopes; D011847:Radioactive Fallout