The Chernobyl and (to a lesser extent) Fukushima nuclear accidents contaminated large areas of land with low-level radioactivity. After both accidents, huge efforts were taken to decontaminate the affected areas.
But a recent study at Fukushima raises doubts about whether these decontamination efforts were worthwhile. Less than one-third of the population has returned to the evacuated zones and extensive areas of forest in the region remain contaminated.
Following the accident at Fukushima Daiichi in 2011, approximately 1,100 square kilometres were evacuated, resulting in the relocation of more than 100,000 people from their homes. A contaminated area about eight times larger remained inhabited, albeit subject to continuous radiation monitoring.
