Safe or septic – Japan’s nuclear wastewater dumping

RNZ, From The Detail, Tom Kitchin, co-host of The Detail @inkitchnz tom.kitchin@rnz.co.nz 11 July 23

There are diplomatic headaches and heated scientific debates after Japan revealed plans to dump the wastewater it’s been using to cool the Fukushima nuclear power plant – in the Pacific.

…………………………… Sea and ground water has been used to cool the damaged reactors, and now there’s about 1.3 million tonnes of that sitting in tanks while the Japanese government and plant operator Tokyo Electric Power Company (TEPCO) figure out what to do with it.

They want to release the wastewater into the ocean – diluting all the cancer-causing nuclear fission products out of it – such as caesium, which can build up in muscles, strontium-90 which can build up in bones and iodine-129 which can build up in the thyroid.

…………………………………………. journalist Nic Maclellan, a Melbourne-based correspondent with Islands Business Magazine, tells The Detail.

“The Pacific Islands Forum has been especially critical, and appointed an independent scientific panel to investigate safety issues around the proposed dumping,” he says.

“The panel has raised a series of issues around the quality of the sampling, the cost of the sampling, the cost of the programme over decades, the maintenance of safety sampling and the fact that they really don’t know whether Japan can maintain the quality that will stop other radioactive isotopes being released into the ocean.”

There are also questions over whether the wastewater dump is a breach of the Treaty of Rarotonga, signed in 1985, which created a South Pacific nuclear-free zone.

It was largely about nuclear weapons, but article seven talks about preventing nuclear waste dumping.

“Japan has been acting as if these safety concerns are not serious and it’s taken a lot of pressure for Japan to be dragged kicking and screaming into addressing questions, many of which are still unresolved,” Maclellan says.

AUKUS is also a factor now – a security pact between Australia, the United Kingdom and United States. The main news out of that is the US and UK will help Australia get nuclear-powered submarines.

“The nuclear submarines are a breach of the spirit of the Rarotonga treaty. There’s going to be interesting debates about a technical definition of whether this is… a breach of the letter as well as the spirit,” Maclellan says. https://www.rnz.co.nz/programmes/the-detail/story/2018897817/safe-or-septic-japan-s-nuclear-wastewater-dumping