Plutonium Found in Fukushima Soil
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Power company officials say plutonium has been detected in the soil outside of the stricken Japanese nuclear complex.
Tokyo Electric Power Co., aka TEPCO, said in a statement that the plutonium was discovered Monday in five locations around the plant,
which has been leaking radiation for nearly two weeks.
TEPCO official Jun Tsuruoka said the amounts were very small and were not a risk to public health.
Experts had expected traces of plutonium to be detected once crews began searching for it this week,
since it is present in the nuclear fuel in the troubled complex.
The news came Monday as workers raced to pump out contaminated water suspected of sending radioactivity levels soaring
and concerns mounted about radiation seeping into the ocean as well as nearby soil.
The coastal power plant, located 140 miles northeast of Tokyo, has been leaking radiation
since a magnitude-9.0 quake on March 11 triggered a tsunami that engulfed the complex.
The wave knocked out power to the system that cools the dangerously hot nuclear fuel rods.
The frantic effort to get temperatures down and avert a widening disaster has been slowed and complicated by fires,
explosions, leaks and dangerous spikes in radiation.
Two workers were burned after wading into highly radioactive water, officials said.
Workers resumed the laborious yet urgent task of pumping out the hundreds of tons of radioactive water inside
several buildings at the six-unit plant.
Workers must remove the radioactive water from the floor before new electric cables can be installed to restart the
reactor’s cooling system.
The process is stalled because containment tanks for the water inside the reactor are full.
James Acton, a nuclear expert for the Carnegie Endowment for International Peace, told CBS’ “The Early Show”
Monday that
since the plant has been hit by a series of catastrophes,
“We’re way beyond the playbook on any of this.
Unfortunately, the plant operator is being forced to improvise in order to clean up this mess.”
Acton said the Fukushima nuclear crisis can be compared to the BP oil spill.
“This crisis does have the potential to go on certainly for weeks, and possibly for months,” he said.
“At the moment radiation levels outside the plant are much higher than they should be,
but there haven’t yet been big, catastrophic releases of radiation,” Acton said.
“I think this crisis certainly has the possibility just to continue as it is at the moment –
you have good days and you have bad days, but taking a long time in order to get this plant under control.”
Contaminated water inside Unit 2 has tested at radiation levels some 100,000 times normal amounts,
plant operator TEPCO said Monday.
Workers also discovered radioactive water in the deep trenches outside three units,
with the airborne radiation levels outside Unit 2 exceeding 1,000 millisieverts per hour —
more than four times the amount that the government considers safe for workers, according to TEPCO.
The five workers in the area at the time were not hurt, spokesman Takashi Kurita said.
The pits are designed as pathways to allow workers to lay out drainage pipes or electrical wires.
Craft reports that three workers who had been hospitalized last week for radiation exposure were released Monday.
Two of the workers have received radiation burns on their legs when the water they were sloshing around in seeped into their shoes.
But doctors said that they’re optimistic they’ll make a full recovery.
Japan’s National Police Agency said Monday 11,004 people died in the twin disasters two weeks ago.
Another 17,339 are listed as missing and thousands more were injured.
As officials scrambled to determine the source of the radioactive water, Chief Cabinet Secretary Yukio Edano said
the contamination in Unit 2 appeared to be due to a partial meltdown of the reactor core.
A TEPCO spokesman said the presence of radioactive chemicals such as iodine and cesium point to damaged fuel
rods as the source.
However, pressure inside the containers holding the reactors was stable, indicating any meltdown was only partial,
spokesman Kaoru Yoshida said, suggesting that the core remains largely intact.
New readings show contamination in the ocean has spread about a mile farther north of the nuclear site than before.
Radioactive iodine-131 was discovered just offshore from Unit 5 and Unit 6 at a level 1,150 times higher than normal,
Hidehiko Nishiyama, a spokesman for the Nuclear and Industrial Safety Agency, told reporters.
Japan’s nuclear watchdog, the Nuclear Safety Commission, said Monday
its members — government-appointed experts who monitor the atomic industry —
believe the radioactive water came from the containment vessel.
It did not clearly state that the primary containment vessel, which protects the core, had been breached.
It could take weeks to clear out the radioactive water, said Gary Was, a nuclear engineering professor at the University of Michigan.
“Battling the contamination so workers can work there is going to be an ongoing problem,” he said.
Edano, the government spokesman, urged residents to stay out of the 12-mile evacuation zone around the nuclear complex,
saying contaminants posed a “big” health risk.
He was responding to reports that people had been sneaking back in.
Meanwhile, a strong earthquake shook the region and prompted a brief tsunami alert early Monday.
The quake off the battered coast of Miyagi prefecture in the northeast was measured at magnitude 6.5, the Japan Meteorological Agency said.
No damage or injuries were reported, and TEPCO said the quake would not affect work to stabilize the plant.
Scores of strong earthquakes have rattled Japan over the past two weeks, adding to the sense of unease across Japan,
where the final death toll from the March 11 disasters is expected to top 18,000 and hundreds of thousands remain homeless.
Confusion at the plant has intensified fears that the nuclear crisis will last weeks, months or years
amid alarms over radiation making its way into produce, raw milk and even tap water as far away as Tokyo.
TEPCO officials said Sunday that radiation in leaking water in Unit 2 was 10 million times above normal —
an apparent spike that sent employees fleeing.
The day ended with officials saying the huge figure had been miscalculated and was 100,000 times above normal,
still very high but far better than the earlier results.
“This sort of mistake is not something that can be forgiven,” Edano said sternly Monday.
TEPCO Vice President Sakae Muto promised better readings.
“We will work hard to raise our precision in our work so as not to repeat this again,” he said at a news conference.
The crisis did not interrupt a yearly rite much loved by the Japanese: the start of the cherry blossom season.
Cherry trees typically begin blooming in the south in March, in the capital days later, and in the chilly north in April
—
the signal that spring has arrived, according to this report from CBS News.
