Over ten years ago, a tsunami triggered a disaster at the Fukushima Daiichi Nuclear Power Plant on Japan’s east coast. After the accident, large amounts of radioactivity contaminated the ocean leading to the imposition of a marine exclusion zone and huge reputational damage to the regional fishing industry.
Huge volumes of contaminated water have accumulated on the site since. Water was needed to cool the damaged reactors and groundwater that became contaminated as it infiltrated the site had to be pumped out and stored. Over 1,000 tanks have been built on site to store over a million tonnes of radioactive water.
But the site is running out of storage space and the tanks could leak, particularly in the event of an earthquake or a typhoon. So the Japanese authorities have given the site permission to release the stored radioactive water through a pipeline to the Pacific Ocean.
