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Fukushima's Radiation Is Contained By a Mile-Long Wall of Ice (cnet.com)
CNET reports on the massive ice wall created by an "intricate network of small metal pipes, capped off by six-foot-high metal scaffolding."
It turns out, coolant is running through the pipes, freezing the soil below and creating an impermeable ice wall that's nearly 100 feet deep and a mile long, encircling the reactors. It's like a smaller-scale subterranean version of the Wall in Game of Thrones, but instead of keeping out White Walkers and wights, this line of defense keeps in a far more realistic danger: radioactive contaminants from melted-down reactors that threaten to spill into the water by Fukushima Daiichi....
The structure, which cost roughly $300 million, paid for by public funds, serves as critical protection, defending the Fukushima area from one of the most radioactive hotspots in the world. While Tokyo Electric Power Co., also known as Tepco, struggles to find a way to remove radioactive material from the facility -- a process the government estimates could take more than four decades -- the more immediate concern is what to do with the contaminated water leaking out from the facility. One of the solutions has been to put up (down?) this underground ice wall, which prevents much of the surrounding groundwater from getting in.
The structure, which cost roughly $300 million, paid for by public funds, serves as critical protection, defending the Fukushima area from one of the most radioactive hotspots in the world. While Tokyo Electric Power Co., also known as Tepco, struggles to find a way to remove radioactive material from the facility -- a process the government estimates could take more than four decades -- the more immediate concern is what to do with the contaminated water leaking out from the facility. One of the solutions has been to put up (down?) this underground ice wall, which prevents much of the surrounding groundwater from getting in.
Radio-isotopes bio-accumulate in the environment, they do not dilute.
Either you don't know the meaning of bio-accumulate, the meaning of the word dilute, or the size of the environment.
We literally figured out in the seventies that dilution doesn't work in ocean dumping, because of not only bioaccumulation, but also currents. Like stuff tends to get moved along like paths, where it accumulates even without biological influence. That's how the garbage gyre formed in one place from plastic dumped all over the planet.
"You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"