In 1982 and 1983, recycled rebar, containing Cobalt-60, was “accidentally” used in the construction of 180 apartment buildings in Taipei. Most of the buildings were completed in 1983. The problem was discovered in the mid-1990's, and full scale investigations started in 1996 after a kindergartener whose classroom was in one of the contaminated buildings died of leukemia.

The Chen 2004 Study
The first study was led by W. L. Chen of the National Yang-Ming University. //

In 2006, Hwang et al published a competing study of the Taipei apartment exposure. //

The Taipei apartment data emphatically contradicts LNT. Hwang's methodology in attempting to refute this conclusion suggests that we are dealing with defense lawyers, not scientists.

The Hwang paper was designed to shoot down the Chen paper and reestablish LNT. //

The Hwang numbers may not demolish LNT as dramatically as the Chen figures; but they clearly meet Feynman's criterion for "one ugly fact", although in this case, the fact that a providential Nature has endowed us with a radiation damage repair system which has no problem with dose rate profiles such as Figure 2 is far from ugly. It's humanity's salvation.

Here's a truly ugly fact. The promoters of LNT can't show us one situation, not one, where people have received a very large dose spread more or less evenly over a protracted period where LNT does not screw up completely. It's quite remarkable that a 100 year old theory that is based on an assumption --- radiation damage is unrepairable --- that we now know is flat wrong, and is always orders of magnitude in error on the kind of dose rate profiles that will be incurred in a nuclear power plant release has survived.