Japan's nuclear safety agency says no major changes have been observed in the concentration of radioactive substances in the sea around the Fukushima Daiichi nuclear power plant after the release of low-level contaminated water.
Tokyo Electric Power Company, or TEPCO, discharged a total of 10,393 tons of low-level radioactive wastewater from its damaged Fukushima plant between April 4th and 10th.
The government's Nuclear and Industrial Safety Agency says the amount of wastewater disposed of was 1,100 tons less than originally planned, resulting in the reduced release of radioactive substances.
To assess the effect of the contaminated water, the power company collected sea water samples from around the plant as well as from 15 kilometers offshore.
The nuclear safety agency says it has concluded that the data shows no major change in the concentration of radioactive substances.
But the agency also directed TEPCO to carry out long-term monitoring over a wider area and to assess the impact of the discharge by measuring radiation levels in fish and shellfish caught in nearby waters.
When releasing the wastewater, TEPCO had said that even if a person were to eat seafood from nearby waters every day for one year, the radiation exposure would total 0.6 millisieverts, which is below the annual permissible level of one millisievert.
Friday, April 15, 2
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