Your own reference shows a roughly 75% survival rate.
Per your assertion in Post 11, we should expect that area to be a radioactive wasteland for another 10000 years.
In the first 4000 feet from center it is a 3% survival rate.
And yes, Chernobyl will be dangerously radioactive for 10,000 years because the contaminated area is much larger.
Come back to me when it and Fukushima are cleaned up & paid off.