Originally posted by donlashway
reply to post by UFO1414
From Tepco I'm not seeing what all the excitement is about:
Assuming what they are reporting is accurate (a silly thing to do in many cases), a hydrazine leak isn't the end of the world. Nor is a water leak.
However if the pool is not cooled it's going to begin to boil dry in about 6-7 days.
If the hydrazine is not injected for too long (to suppress over-oxygenation) then further building corrosion will result.
These buildings are in fast forward rusting mode, they used seawater to cool them for quite some time, plus galvanic corrosion between uranium and
various building metals, plus other corrosive effects including chemical ones from the myriad of isotopes and high radiation itself.
Most cooling water leaks are usually rather radioactive due to there being fuel damage already in most sources. Also by the time they usually spot
them, far more has leaked and drained than is measurable.
Fuel damage means the fuel has melted at some stage through over-temperature, the zirconium alloy around the outside of the fuel rod has ruptured and
allowed extremely fine or aerosolised particles to escape. Nuclear fuel sputters like dust when melting down, through a process called 'coulomb
explosion'. That's what caused all the 5-10 hot particle per day per man readings, on US west coast. They're the real killer as they sit in your lungs
causing damage with far lower measurable levels, they float on the wind eveywhere. They sit in dust. They get into your food, children and anything
else Geiger counters don't see them unless it's too late. Big nuclear only focuses on external dose for this reason, while forgetting to tell you
that nuclear plants leak as part of their daily operations.
March 15th in Tokyo, I watched a webcast standard Geiger counter, build and peak at four times background from air particles alone. Again, a standard
counter can't really detect these airborne particles, unless there are extremely dangerous amounts of them.
From current research this peak is thought to be a combination of ongoing melt through but mostly from a fire at #4 fuel pool, which occurred during
these days, helicopter water dropping measures were in place.
Current readings here with a slightly different server from the same domain.
edit on 13/4/12 by GhostR1der because: edit to clarify dust/aerosolisation and #4