Dose rates were also given above seawater level on 26 March. They are between 0.041 and 0.100 micro-Sv/h
Levels at about 330 m east of the discharge area showed increasing concentrations with 74000 Bq/L for I-131, 12000 Bq/L for both radionuclides Cs-134 and Cs-137
Modelling of the dispersion of radionuclides was initiated and first results were available. The results show an initial transport into north-east direction and the contaminated seawater could reach the 30 km off-shore sampling section between 7 and 14 days after release
It can be expected that the marine dispersion will take months or years to reach other riparian Pacific countries. At resent, the main transport of contamination takes place by atmospheric transport over long distances with high dilution capacity.