Tokyo will host the 2020 Summer Olympics, 56 years after it staged the same event.
International Olympic Committee delegates in Buenos Aires chose Japan's capital city over Istanbul in the final round.
Madrid was rejected in the first round of balloting.
The prime minister of Japan, Shinzo Abe, travelled with the Japanese delegation and claimed that problems at the Fukushima nuclear plant were under control.
"It has never done and will never do any damage to Tokyo," he claimed, according to a CBC report.
Abe's comments contradict a recent post on the Fukushima Diary website, which tracks horror stories linked to the crippled nuclear facility.
Citing a news conference held by the Tokyo Electric Power Company, it stated that approximately half of the water from Fukushima plant's port travels into the Pacific Ocean.
Meanwhile, Damian Carrington's environmental blog, which is on the Guardian site, has described the CDN$325 million being spent on an ice wall as "the latest desperate attempt to halt the radiation-contaminated water that is leaking into the sea".
"The final cleanup will cost tens of billions and take 40 years," Carrington predicts.
Tokyo is 238 kilometres from Fukushima, which is slightly farther than the distance from Vancouver to Tacoma, Washington.
As for Abe's claim that his country's nuclear accident has had no impact on Tokyo, that assertion has been challenged Chris Busby. He has a PhD in chemical physics and is a former member of Britain's Committee Examining Risks of Internal Emitters.
Busby reported last year that he had found enormously high levels in an air-conditioning unit in central Tokyo.
The dust measured hundreds of thousands of Becquerels per kilogram, which is enough to scare anyone familiar with the effects of radiation.
There's a lesson for anyone thinking about attending the 2020 Olympics: demand new air-conditioning filters in any hotel room you plan on visiting.
Because as we've seen since the March 2011 tsunami-caused devastation of the Fukushima power plant, you can't always take the Japanese government at its word.