“…The Chernobyl and Fukushima accidents led to radioactive contamination in many regions through transport and deposition of radionuclides (Chesser et al, 2004;Ooe et al, 1988;P€ oll€ anen et al, 1997;Parache et al, 2011). Some areas may be contaminated for a long period of time due to the presence of long-lived radionuclides [e.g., 137 Cs (Yoshenko et al, 2006a(Yoshenko et al, , 2006b].…”