OBI307 wrote:Anyone else ever heard of coal ash being radioactive?
Yes it is, so is dirt.
This is one of those things where people read something and don't fully understand what they are reading and it's hard to blame them when you have people with an agenda. Firstly a respected scientific publication published an article with the headline "Coal Ash Is More Radioactive than Nuclear Waste".
This made it's way around various websites specifically environmental ones when it was published. Too many nitwits never took the time to actually read it and just kept repeating the title.
They should be ashamed of themselves for publishing it with that title. If you read the article all the way to the end what you'll find is the most important sentence in the entire article. An addendum I might add that was added a full year after it's publication.
What they are comparing it to is highly regulated nuclear waste in a facility meant to contain it. In other words the articles title could have read "Dirt more radioactive than nuclear waste". While this is true in this context it's hardly an honest title.
If you want to get into specifics coal ash has slightly higher levels of radiation that granite which of course is used for kitchen countertops. Exposure to radiation from coal ash for the average person in the US is listed in the pie chart under the 1% slice "other".