Reduction of Radiation Doses in Surrounding Environment

< Sea area monitoring >

By the sea-side impermeable wall consisting of driven steel piles, which was completed in October 2015, and other various measures, concentrations of radioactive materials in the surrounding environment were reduced and have maintained levels far below the World Health Organization (WHO) guideline level for drinking water quality.

< Surrounding area monitoring >

At the Fukushima Daiichi NPS, various measures are taken to prevent scattering of radioactive materials to outside of its premises. Representative measures being taken are spraying of antiscattering agents and facing of the ground with mortar. These measures have worked to stabilize measurement results at radiation monitoring posts within the premises.

• Included in this reference material on February 28, 2018