Hi Alex
I guess you mean fallout from the Japanese disaster ?
We wore a lot from nuclear weapons testing in the 50's to
And likely much more still from the few very non publisised
(because they didn't detonate ) experiments regarding how the componants of nuclear weapons namely uranium , plutonium
behave when incinerated , compressed ,etc in the atmosphere.
I do have a book somewhere which shows the plume of the last of these
tests , 63 , which moves across western NSW and across SE QLD
I don't have the data at hand but do recall reading and filing in the grey box , " somewhere " as I was 4 weeks old at that time this occured.
see minor tests
http://en.wikipedia.org/wiki/British...s_at_Maralinga