Nuclear security

We still don't really know the health hazards of a nuclear accident

Five years after the nuclear disaster in Fukushima and 30 years after the Chernobyl accident, scientists are still disagreeing about the impact on human health – such as how many people have got cancer as a result and how dangerous the exclusion zones currently are.

In Fukushima, residents are forbidden to permanently return to their homes within the exclusion zone. And in Ukraine the city of Pripyat, 4km from Chernobyl, still remains largely deserted. While some experts have recently said that the areas surrounding these accidents are not as dangerous as previously thought, others are concerned about the high levels of radiation remaining in plants and animals, particularly seafood.