Professor Yukio Hayakawa of Gunma University has been revising his radiation contour map that he first made available in April. Now, he has a version of the map dated September 30 that indicates the routes and the timing of contamination, as you see below.
Professor Hayakawa says in the September 30 post that he specifically prohibits the use of the map by newspapers and television networks, as he protests the "unjust" firing of the Minister of Economy, Trade and Industry Hachiro, which many in Japan, including politicians and some people in the mass media, considered as a hit job by a pro-nuke faction to bring down Hachiro.
Click on the map for a bigger view, or go to this link for a cleaner map.
For PDF file of the map, go here.
Some Japanese seem to think Professor Hayakawa is controversial because he doesn't mince his words to appear "nice" to the "victims" in Fukushima Prefecture. He openly accuses Fukushima farmers for "producing the poisonous (radiation-contaminated) produce and spreading them all over Japan". He says they had a choice of not farming this year, but they did.
Some contrast to Hiroaki Koide of Kyoto University, who openly calls for the consumption of radiation-contaminated foods by adults in order to save the children and to save the farmers.