What's happening at Taishan? feat. Mark Nelson

The Taishan nuclear plant in the Guangdong province of China houses two French-built EPR reactors, the first of their kind in the country. For the past couple of weeks, equipment has registered slightly elevated radiation readings inside and directly outside the plant. The cause so far appears to be leaks from one or more fuel rods. Mark Nelson joins me in this brief episode to reflect on this breaking story; its coverage in the media; the phenomenon of fuel rod leaks; issues with first-of-a-kind reactors; the knowns, unknowns, and clues of this particular incident; and the issues of policy on background radiation limits. Despite media coverage claiming the leak is a disaster in the making, the minor fuel-rod leak is unlikely to cause any direct harm to people or the environment. At the current leak rate, if left unattended for two years the elevated radiation at the detection point near the plant would hardly amount to a quarter of someone's yearly background radiation dose here in Ontario.

In this episode, Mark lays out possible paths along which this story could develop. We still do not know exactly how extensive the fuel rod leaks at the reactor are—whether it is a one-off or a systematic issue with the EPR design. However, Mark argues that the lack of a reactor shutdown to prevent expensive potential damage is a clue that the leak is just that, and not a cover for more concerning reactor damage. In Mark's words, the incident constitutes "bad industrial hygiene," but certainly not a "nuclear accident." Still, the leak could lead to political pressure on China, perhaps to implement a "zero leaker" policy similar to the United States.

Mark's Twitter thread on Taishan can be read here: https://twitter.com/energybants/status/1404476721076781060?s=20