Two and a half years after a near meltdown, the Fukushima nuclear power plant is still in trouble. The Nuclear Regulation Authority issued a new warning Wednesday, raising the severity level of the continuing leak from one to three on an international eight-point scale.
Ever since the devastating 2011 Tōhoku earthquake shook the area, the Fukushima Dai-Ichi nuclear plant has been subject to numerous leaks and controversies.
The alert comes as TEPCO (Tokyo Electric Power Co) found at least 300 metric tons of radioactive water to have leaked from the site, with ‘hotspots’ found nearby. Workers are now scrambling to check an additional 300 tanks that currently contain contaminated water at the stricken nuclear power plant.
Each point on the International Atomic Energy Agencies eight-point scale of the scale represents a ten-fold increase in radiation, so a jump of two points is highly significant. The latest confirmed leak, from a tank which can hold up to 1,000 tonnes of water, hasn’t been stopped yet and TEPCO acknowledges that they have yet to identify the cause of the leak.
TEPCO has stated that there is no evidence that the contaminated water from these leaks has reached the ocean, but there is significant contamination to the soil in the area, which will need to be addressed. The prime minister of Japan, Shinzo Abe, has expressed a loss of confidence in Tepco’s ability to deal with the situation, and has stated that the government will be stepping in to take additional measures to address this continuing disaster.
Tepco has also been criticized for delaying the release of strontium-90 levels in local groundwater despite demands from regulators.