Tokyo children’s playground closed over nuclear radiation


Workers of Tokyo's Toshima ward office carry away a container after it was dug up from the ground near playground equipment at a park in Toshima ward, Tokyo. Photo: TORU HANAI

From AFP news agency:

Tokyo children’s park closed over radiation

April 24, 2015

Tokyo: Extremely high levels of radiation have been discovered in a playground in Tokyo, officials said on Friday, fanning fears for the health of children in the area.

Soil underneath a slide at the park in the north-west of the Japanese capital showed radiation readings of up to 480 microsieverts per hour, the local administrative office said.

Anyone directly exposed to this level would absorb in two hours the maximum dose of radiation Japan recommends in a year.

“Many children play in the park daily, so the ward office should explain the situation,” Kyodo News quoted a 62-year-old local woman as saying.

The radiation level is over 2000 times that at which the national government requires soil cleaning in areas around the Fukushima Daiichi nuclear plant, where reactors melted down after the March 2011 tsunami.

That standard, however, is for measurements taken at 0.5 to 1.0 metres above ground, while officials in Tokyo’s Toshima ward checked the ground itself.

Officials were made aware of the contamination after a local resident reported it on Monday and say they do not think it is connected to the disaster at Fukushima.

“Because the area in which we detect radioactivity is very limited, and readings in surrounding parts are normal, we suspect radioactive materials of some kind are buried there,” local mayor Yukio Takano said in a statement.

The park was built in 2013, two years after the Fukushima nuclear crisis, a local official said, on what was previously a parking lot for Tokyo’s sanitation department.

Top soil at the lot was replaced before the land was turned into a park, said the Toshima official.

The park has been sealed.

6 thoughts on “Tokyo children’s playground closed over nuclear radiation

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