The results of the nationwide GM canola survey called for by the citizens' organization "No! GMO Campaign" were announced at a meeting in Tokyo on 8 July 2006. In this survey, the second after the survey conducted in 2005, 1942 samples were taken in 42 prefectures. 38 positive samples were found using the simple kit for preliminary protein testing, of which 31 were found to be positive in a second DNA test by the PCR method.
Similar to the results of the 2005 survey, GM varieties of canola were confirmed to be growing in the wild in totally unexpected locations far from distribution routes. The canola pollution detected in Hiji Town, Oita Prefecture, Kyushu, shows that this pollution has now spread much more widely than had previously been thought.