Is Japan going to be safe to travel?

Question:

My daughter will have an opportunity to travel to Osaka, Japan in October. Will there still be threats of radiation exposure that far from the nuclear plant?? I am afraid of contamination from people that may have traveled from the infected area?

Professional insight greatly appreciated!
Thank you.

Answer:

Osaka is so far away from the epicenter or the nuke. It was not hit by the earthquake or radiation.