Ocean currents have since dispersed the contaminated water enough that radioactive Cesium is nearly undetectable in fish from Fukushima prefecture. A year before the 2011 disaster, government data shows Fukushima’s coastal fishing industry landed catches worth around $69 million. At the same time, ground and rainwater have leaked in, creating more radioactive wastewater that now needs to be stored and treated. This isotope is radioactive tritium, and the scientific community is divided on the risk its dissemination carries. He argues TEPCO should build more storage tanks to allow for the decay of the radioactive tritium, which has a half-life of 12.3 years.

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