• Japan GP to go ahead at Motegi on 2 October as planned
• Air, environment and food given all-clear after nuclear disaster

The Japanese Grand Prix will go ahead in October despite leading MotoGP riders refusing to race. The International Motorcycling Federation said that an independent report commissioned to investigate the situation after the Fukushima nuclear disaster in March had cleared the way.

"The agency commissioned for this report has measured levels of radiation from all sources, including the air, environment and food," the FIM said. "The report's conclusion is that 'based on the estimated dose, it can be said with no doubt that the radiation risk during the race event is negligible'.

"Based on this information the FIM will announce later this week that, subject to there being no further serious incidents, the Grand Prix of Japan will take place on 2 October."

The race was scheduled for 24 April but was postponed after the nuclear plant's cooling systems were crippled by the earthquake and tsunami. The damage led to meltdowns in three reactors.

The world champion, Jorge Lorenzo, and the championship leader, Casey Stoner, who ride for the Japanese teams Yamaha and Honda respectively, have both said they will not be going to Motegi.

The preliminary report, released on the FIM website, said air and soil in the area of Motegi and the riders' hotel had been tested as well as food and drinks bought locally.