sábado, 12 de março de 2011

Agencea Reuters no Japão traz mais detalhes sobre explosão de usina nuclear de Fukushima

Fukushima Nuclear Plant Scrambles To Avert Radiation Crisis

Fukushima Nuclear Plant State Of Emergency

Posted: 03/11/11 01:37 PM

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TOKYO (Reuters) - Thousands of residents were evacuated from an area around a nuclear plant in quake-hit Japan after radiation levels rose in the reactor, but there was no word on whether there had actually been a leak.

Underscoring grave concerns about the Fukushima plant some 240 km (150 miles) north of Tokyo, U.S. Secretary of State Hillary Clinton said the U.S. air force had delivered coolant to avert a rise in the temperature of the facility's nuclear rods.

Tokyo Electric Power Co said pressure inside a reactor at its Fukushima-Daiichi plant rose after the cooling system was knocked out by the earthquake, the largest on record in Japan.

Kyodo news agency quoted the company as saying that the radiation level was rising in the turbine building and the pressure had risen to 1.5 times the designed capacity.

Experts said there could be leakage if water levels in the Fukushima reactor fell and the temperature of the nuclear rods rose, though this might not happen immediately.

"Even if fuel rods are exposed, it does not mean they would start melting right away," said Tomoko Murakami, leader of the nuclear energy group at Japan's Institute of Energy Economics.

"Even if fuel rods melt and the pressure inside the reactor builds up, radiation would not leak as long as the reactor container functions well."

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