Fukushima emissions down

Fukushima emissions down

"Provisional analyses based on radiation dose rates at the site boundary show that emissions to air have reduced by a factor of two million compared to those at the height of the crisis, when the torus suppression chamber of unit 2 ruptured on 15 March.
Someone standing at the western border of the power plant today could expect to receive a maximum of 1.7 millisieverts per year (mSv/y) from airborne radioactivity from the three ruined reactors. This compares to the 2.4 mSv/y average that people worldwide receive from background sources, and the operational limit for nuclear power plants in Japan to limit public exposure to 1.0 mSv/y.
Dose rates from emissions drop dramatically away from the site: five kilometres away the maximum rate from newly released radiation is 0.3 mSv/y; ten kilometres away it is 0.09 mSv/y; and 20 kilometres away it is 0.03 mSv/y."