I found this posted in a few places. I seriously doubt it's real though. I really don't think a pattern like that is even possible.
This image is 100% confirmed fake.
It comes from 4chan. (Where else?) And if this doesn't prove to you that 4chan is an evil place filled with evil people, then nothing will. (Gee, you think all that racism and child porn would do that. But apparently people are insensitive to the suffering of sexually abused children. I mean those 4chan pedos are just being shocking and ironic. Right???)
Rumors say the image is entirely the creation of one hate-filled austrlian brat.
QUOTE
DISCLAIMER: Australian Radiation Services is aware of information about radioactive contamination being spread from the Japanese nuclear reactor incident released under the ARS logo and name. We wish to be clear that this information has not originated from ARS and as such distance ourselves from any such misinformation.
http://www.australian-radiation-services.com.au/