Is there really that much radiation in Japan?

Question:

I am going to Okayama, Japan for about two weeks soon. Its about 500 miles away from where the most radiation is in Japan. My grandparents "who live in Japan" told us that the government is testing and throwing away any food that has a trace of "too much" radiation and taking a lot of measures to make sure everyone is safe from the radiation. I told my biological mom (i had to because its part of the custody agreement) that i am going to japan and the days i will be there. she started telling me that theres a lot of radiation there and i could die in the future or whatever, then i told her that i saw a chart and it said that in okayama there is less radiation than in new york. then she said "i heard hawaii has a lot of radiation too, so it spreads, so it probably spread to okayama." heres the thing though: she is ALWAYS saying things like this. she is pretty paranoid. even counselors and doctors know she is but she wont take medication. so, i came to yahoo answers to find out at least something a little closer to the truth than some paranoid person, so if anyone has an answer it would be gladly appreciated. :)

Answer:

There isn't much radiation in Okayama. As you say, it's 500 miles away from Fukushima.