Following concerns about radiation levels at the Motegi circuit, which is located 120km from the Fukushima nuclear reactor, the FIM and Dorna commissioned an independent study between the period from July 10, 2011 to July 23, 2011 to investigate radiation levels in the air, soil, food and beverages at the race circuit. The final conclusion of the report found that "based on the estimate dose it can be said with no doubt that the radiation risk during the race event is negligible."
The event, which was originally scheduled to take place in April was rescheduled to October following the tsunami that affected the region in March. Riders and teams have voiced strong concerns over travelling to the affected area and a number of riders, including Casey Stoner and Jorge Lorenzo expressed that they were unwilling to travel to the region under any circumstances. Riders began to voice their concerns at Mugello earlier this month, and a meeting was held at Laguna Seca this past weekend, where riders seemed slightly more open to attending the event.
It is expected that a number of MotoGP, Moto2 and 125 teams will attend Motegi; the question remains how crew, journalists and other support workers feel about attending.
The preliminary report can be found on the FIM website.
