1 - The article's title was misleading. Gram for gram, nuclear waste is much more radioactive than fly ash.
2 - The 'scientific study' compared a measured exposure with an estimated exposure. Hmmm. Not what I'd consider good science.
3 - The issue of exposure is, further, a false one. Hardly
anyone (at least who knows what they're talking about)
is afraid of being near a properly functioning nuclear reactor. They're clean places, carefully monitored, in the main, and so on. And coal-fired power plants are, in fact, nasty places, and dirty.
The problem with the comparison is that if the coal-fired
plant is struck by lightning, or a bomb, or a plane, or catches on fire, or breaks in half in an earthquake, your exposure will be mostly to particulate pollution, and for a few hours, during which you may leave the area.
Conversely, if anything happens to a nuclear power plant to cause an accident, the risk of immediate exposure to a dangerous or lethal dose of radiation is fairly high.
Even operator error can be critical with a nuclear plant -- think of Chernobyl, Three Mile Island, that reprocessing accident in Japan a few years back. Human error becomes disproportionately risky with nuclear installations.
4 - The article doesn't address a REAL question that I've asked some high-level, knowledgeable nuclear proponents and opponents -- What is the radiation release in fly ash
compared with the radiation in nuclear waste, expressed on a kilowatt to kilowatt basis?
Now THAT would be something interesting to find out.