Leaching of Radionuclides from Samples of Radioactive Slag from a Ground-Surface Nuclear Explosion on the Coast of the Chernaya Bay of the Novaya Zemlya Archipelago

摘要

Leaching of ~(137)Cs and ~(239+240)Pu radionuclides with distilled and seawater from samples of radioactive slag from a ground-surface nuclear explosion on the coast of the Chernaya Bay of the Yuzhnyi Island of the Novaya Zemlya Archipelago, the Central Test Site of the Russian Federation, was studied in a laboratory. The ~(137)Cs and ~(239+240)Pu leach rate is ≤(2.7-3.5) × 10~(-6) and (4.8 ± 0.3) × 10~(-9) g cm~(-2) day~(-1) in contact with distilled water and (0.74-5.0) × 10~(-6) and (1.0 ± 0.14) × 10~(-8) g cm~(-2) day~(-1) in contact with seawater, respectively.