Uhmmm the large concrete domes that turned to dust with a bang might count as “blowing up”.
Radiation moves far and wide. Boise Idaho reported the highest levels of radioactive iodine in their rainwater (above food or water safety limits but rainwater doesn’t have a comparable limit). The EPA reported Cesium 137 detected in Vermont: http://www.infiniteunknown.net/2011/04/09/us-epa-finds-cesium-137-in-vermont-milk-radiation-detected-in-drinking-water-in-13-more-cities/
But you can keep your lunch - I don’t want it.
Since the prior link is to an unfamiliar site - I’ll post the link to FORBES here: http://www.forbes.com/sites/jeffmcmahon/2011/04/09/radiation-detected-in-drinking-water-in-13-more-us-cities-cesium-137-in-vermont-milk/
“Radiation moves far and wide.”
You don’t know what you’re talking about, which is why the EPA can come out and say all kinds of things which may look frightening but really is not.
I will give you an analogy using uranium and dog feces. A pile of uranium, which is an atomically unstable element that emits radiation in a process known as ‘decay’, is like a pile of dog feces emitting, or radiating, stench. Neither is nice to be around.
Radiation travels in a straight line. It can be shielded by three things: time, a barrier such as concrete or lead or water, or distance from the radioactive source.
I live in southwest Washington State. I like oysters and eat those harvested from Willapa Bay on the Washington coast. They haven’t been contaminated, and if radioactive particles were in abundance in the sea water, as filter feeders oysters would show evidence. The State of Washington is keeping notice.
Cesium 37 was put into the atmosphere by Chernobyl. It is a problem in the northern latitudes of Scandinavia and obviously is being monitored in the northeast U.S.A. Cesium 37 has a half-life of 30.7 years so it is decaying and I would expect it to be more difficult to find with time. Wikipedia has a good section on the subject; you will find the entry about Fukushima interesting, no doubt.
The large concrete domes collapsed, which isn’t the same thing as “blowing up”. No cesium 37 blasted into the air as happened at Chernobyl when the steam lines ripped apart and pulverized the fuel rods.