Japan nuclear alert at Fukushima - Q&A
- Published
There have been a number of explosions and fires at the Fukushima Daiichi nuclear power plant in Japan, following Friday's earthquake and tsunami.
Four of the plant's six reactors have been in trouble. How great a danger do these problems pose for people in Japan and further afield?
Has there been a leakage of radioactive material?
How much radioactive material has been released?
What type of radioactive material has escaped?
What harm do these radioactive materials cause?
How did the radioactive materials escape?
Could radioactive materials have escaped by any other means?
How long will any contamination last?
Has there been a meltdown?
Could there be a Chernobyl-like disaster?
Could there be a nuclear explosion?
What caused the hydrogen release from the reactor?
How do iodine tablets work?
What kind of radiation levels have been recorded at Fukushima?
Is any level of exposure to radiation safe?