Thread: How much time will it take for the radiation levels in Japan to drop to normal?

If you say "years", please write how many.
NOTE: I have a bad feeling that Japanese government is not being completely honest about the real levels of radiation exposed so not to upset the people that are already devastated. In any case, I hope that what you've said is right.

Halflife is 108 years.

Hopefully it shouldn't take long. Chernobyl is still radioactive last I heard, but its not damaging to humans as I understand. I'm praying things there can get back to normal.

It depends on where in Japan and what you mean by normal.

The only area where people are not allowed because of radiation now is 30km in radius around Fukushima nuclear power plant.

Other areas are normal after all.

Currently no where in Japan is tainted so badly that it will take years to recover. Only a 20km radius of the nuclear plant is experiencing potentially dangerous levels of radiation though currently short term.

This may change if the problem gets worse.

You have a wrong information. Radiation monitoring system around the plant shows that it has not reached a level of danger at all. Although the roof of the plants exploded due to hydrogen gas accidentally filled inside the buildings, the nuclear reactors are not damaged, so, no radiation leakage is taking place at this point. Yes, a small amount of radiation was exhausted in the process of ventilation of hydrogen before the explosion, the current level of radiation is lower than that of X-ray.
However, there is a possibility of melt down of the reactors in worst case. That is why the government ordered local people to evacuate the area. Not because the area around the plant is polluted. "Not yet," to say the least.

About 180 years