Post-bomb rise in radiocarbon activity in Denmark.
D054042:Bombs; D002244:Carbon; D002250:Carbon Radioisotopes; D003718:Denmark; D011847:Radioactive Fallout; D011851:Radioactivity; D012621:Seasons
D002250:Carbon Radioisotopes; D011847:Radioactive Fallout; D002244:Carbon
CARBON/radioactive; RADIOACTIVE FALLOUT