TOKYO, October 14. /TASS/. The highest radiation level was registered in subsoil water taken from a technical well at 1st and 2nd power units at Fukushima-1 nuclear power plant after the nuclear disaster in Japan in 2011, Tokyo Electric Power Company operating the nuclear plant said on Tuesday. The underground water sample was taken on October 13.
The caesium isotope content has made 251,000 Becquerel (Bq) per liter. Japan has set the highest permissible level of these elements for water split in the ocean at 30 Bq.
Company’s experts said that a surge in radiation was linked with the impact of a typhoon raging in the locality, when heavy rain triggered spread of radiation-contaminated particles in underground water. Now nuclear plant’s specialists are pumping out ground water urgently to prevent it from leaking into the ocean.