If you mean when will Chernobyl be completly save - the half-life of Plutonium 239 is 24,000 years. Perhaps we should just say, "not in our lifetimes."
- Valery Legasov in Chernobyl, Season 1 Episode 3The accident is well under control.
- Viktor Bryukhanov in Chernobyl, Season 1 Episode 1Mistakes, Nuclear Energy