Question:

about people of japan

Answer:

Unfortunately, your question isn't even remotely clear so I'll just give you some places to read.

Here is an informative article describing the situation at the Fukushima power plant:
http://bravenewclimate.com/2011/03/13/fu…

And here is where you find current, factual status information:
http://www.iaea.org/newscenter/news/tsun…
Historical status:
http://www.iaea.org/newscenter/news/2011…

And a slide presentation that describes the effects:
http://www.slideshare.net/iaea/radiologi…

And here is a chart that helps make sense of the numbers:
http://www.xkcd.com/radiation/