Interesting analysis of Edwin Lyman at min 10:08

in addition to what was emitted into the air, there is leakage into the sea....

These damaged reactors have holes in them and they are leaking water like swiss cheese. But you have to keep pumping water into those reactors, because the cores are so hot. So even today, you still need to circulate water into these reactors every day.......

Every day this contaminated, radioactive water mixes with ground water and it flows into the sea.

He goes on to explain what TEPCO is doing (or failing to do).

Thread: Fukushima Analyzing the Radiation Leaks 2011 to Oct. 2014 summarized in 15min