The forthcoming £478m clean-up, of which the shield is a £155m component, will be funded by 28 countries, including the G8 and Ukraine. The shield should be ready by 2007. Mr Novak said that the shield, which will be 112 metres high, would be built away from the reactor site. The giant structure will then be slid into place on specially greased rails to limit the exposure to radiation of the project workers.
Much of the radioactive material inside the building - temporarily contained
by a Russian-designed 'sarcophagus' - is a mixture of fuel, concrete, 30
tonnes of fuel dust, and 2,000 tonnes of combustibles. Experts are most
worried about the radioactive "soup" that has formed in the basement, where
rainwater and fuel dust have mixed. There are also concerns that the water
table may have been contaminated. The shield is intended to stay in place
until either the radiation threat decreases or the Ukrainian government finds
a permanent storage facility for the 200 tonnes of uranium and one tonne of
radioactive plutonium still inside the ruins.