Source: NRC [PDF]
quote: I would add the cost of indefinite storage of nuclear waste (it seems that so far it's been - conveniently - swept under the carpet/into on site pools until cleanup crew (and taxpayer) will take over decommissioned site).
quote: low level waste in terms of radioactivity and will be 95 percent decomposed within 100 years
quote: About 95 percent decays to background levels within 100 years or less....Although the classification of waste can be complex, Class A waste generally contains lower concentrations of long half-lived radioactive material than Class B and C wastes.
quote: In fact, the fly ash emitted by a power plant—a by-product from burning coal for electricity—carries into the surrounding environment 100 times more radiation than a nuclear power plant producing the same amount of energy.
quote: the average person encounters 360 millirems of annual "background radiation" from natural and man-made sources, including substances in Earth's crust, cosmic rays, residue from nuclear tests and smoke detectors.