Radiation found in groundwater under Japan nuke plant

TOKYO — Radiation exceeding government safety limits has seeped into groundwater under a tsunami-crippled Japanese nuclear plant, according to the operator, but has not affected drinking supplies.

As restaurants and shops start to re-open

As restaurants and shops start to re-open

TOKYO — Radiation exceeding government safety limits has seeped into groundwater under a tsunami-crippled Japanese nuclear plant, according to the operator, but has not affected drinking supplies.

The leak announced late Thursday could pose a long-term problem, however, and at the very least it is a concerning indicator of how far Tokyo Electric Power Co. is from bringing its plant under control. Workers have been battling to stabilize dangerously overheating reactors after cooling systems were knocked out in the March 11 tsunami.

TEPCO has increasingly asked for international help in its uphill battle, most recently ordering giant pumps from the U.S. that were to arrive later this month to spray water on the reactors.

The groundwater contamination — 10,000 times higher than the government standard for the plant — is the latest setback at the Fukushima Dai-ichi complex, where leaks have already contaminated food and hindered workers’ ability to bring the plant under control. Iodine-131, a radioactive substance that decays quickly, was found nearly 50 feet (15 metres) below one of the reactors, according to TEPCO spokesman Naoyuki Matsumo.

While the contamination does not appear to have caused an immediate problem, there are two ways it could eventually affect drinking water if concentrations were high enough. One is if it were to seep into wells in the area. For now, a 12-mile (20-kilometre) radius around the plant has been cleared, though residents of the area are growing increasingly frustrated with evacuation orders and have been sneaking back to check on their homes.

The other concern is whether contaminated water from the plant could seep into underground waterways and eventually into rivers used for drinking water. It’s not yet clear if this is possible.

Seiki Kawagoe, an environmental science professor at Tohoku University, also noted that radiation tends to dissipate quickly in the ground, as it does in the ocean.

Radiation concerns have rattled the Japanese public, already struggling to return to normal life after the earthquake-borne tsunami pulverized hundreds of miles (kilometres) of the northeastern coast. Three weeks after the disaster in one of the most connected countries in the world, 260,000 households still do no have running water and 170,000 do not have electricity.

In the latest report of food becoming tainted, the government said Friday that it planned more tests on a cow slaughtered for beef that had slightly elevated levels of cesium, another radioactive particle. Officials stressed that the meat was never put on the market.

Health Ministry spokesman Taku Ohara said the cesium was found in a cow slaughtered March 15 more than 40 miles (70 kilometres) from the plant.

Radioactive cesium can build up in the body and high levels are thought to be a risk for various cancers. It is still found in the soil of Germany, Austria and France 25 years after the Chornobyl nuclear disaster and is found in wild boar in Germany, making the pigs off-limits for eating in many cases.

Contamination has also affected work at the plant itself, where radioactive water has been pooling, often thwarting the vital work of powering up the complex’s cooling systems.

Despite the leaks, TEPCO hasn’t had enough dosimeters to provide one for each employee since many were destroyed in the earthquake. Under normal circumstances, the gauges, which measure radiation, would be worn at all times. But officials said Friday that more meters had arrived and they now had enough to everyone.

TEPCO has repeatedly relaxed safety standards during the crisis in order to prevent frequent violations. That is not uncommon during emergencies.

Though the company has acknowledged that it was initially slow to ask for help in dealing with the nuclear crisis, experts from around the world are now flooding in. French nuclear giant Areva, which supplied fuel to the plant, is helping figure out how to dispose of contaminated water and American nuclear experts are joining Japanese on a panel to address the disaster.

Japan has also ordered two giant pumps, typically used for spraying concrete, from the U.S. They are being retrofitted to spray water first, according to Kelly Blickle, a spokeswoman at Putzmeister America Inc. in Wisconsin. At least one similar pump is already in operation at the plant.

U.S. troops are also involved in the search for the dead. Japan’s defence ministry said, starting Friday, the two militaries will create joint teams to look for bodies from the air. So far 11,500 people have been confirmed dead, though that figure it expected to exceed 18,000. Another 16,400 are missing, and many may never be found.

Hundreds of thousands more people are living in evacuation centres, most because they lost their homes in the tsunami. But others have been forced to leave their houses near in the plant because of radiation concerns.

Some residents are growing angry and frustrated with the government and are increasingly violating the bans to return to their homes to gather whatever they can find.

Fukushima officials have put up posters in all evacuation centres urging residents not to violate cordon but are also pressing Tokyo to arrange trips in for the residents as soon as possible.

“There is no doubt in my mind that it is dangerous in there,” said Kazuko Hirohara, a 52-year-old nurse from Minami Soma. “I just wish they would have thought about safety before they ruined our lives.”

———

Associated Press writers Eric Talmadge in Fukushima, Mari Yamaguchi and Mayumi Saito in Tokyo, and Jeff Martin in Atlanta, Georgia, contributed to this report.

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