Radiotoxicity does indeed drop to ore levels in 300-500 years but even then there are a few problem actors. Partitioning and transmutation can help with these,

Radiotoxicity does indeed drop to ore levels in 300-500 years but even then there are a few problem actors. Partitioning and transmutation can help with these, probably. https://en.wikipedia.org/wiki/Long-lived_fission_product https://en.wikipedia.org/wiki/Long-lived_fission_product