福岛放射性污水的泄露源被发现_时事要闻

福岛放射性污水的泄露源被发现

文章来源：未知文章作者：enread 发布时间：2013-08-20 07:10 字体： [大中小]　进入论坛

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Radioactive water has leaked from a storage tank into the ground at Japan's Fukushima plant, its operator says.

日本福岛核电站泄露的放射性污水来自一个储水罐。

Tokyo Electric Power Company (Tepco) said the leak of at least 300 tonnes of the highly radioactive water was discovered on Monday.

The plant, crippled by the earthquake and tsunami¹ in 2011, has seen a series of water leaks and power failures.

The tsunami knocked out cooling systems to the reactors³, three of which melted down.

An employee discovered the leak on Monday morning, Tepco said in a statement.

Officials described the leak as a level-one incident - the lowest level - on an international scale that measures nuclear events.

This is the first time that Japan has declared such an event since the 2011 earthquake and tsunami, however.

A puddle⁴ of the contaminated water was emitting 100 millisieverts an hour of radiation, Kyodo news agency said, exceeding the maximum yearly dose allowed for a nuclear worker in Japan.

"We have instructed Tepco to find the source of contaminated water - from which tank the water is leaking - and to seal the leakage⁵ point," a regulatory official told Agence-France Presse news agency.

"We have also instructed them to retrieve⁶ contaminated soil to avoid a further expansion of toxic⁷ water, and to strengthen monitoring of the surrounding environment."

No major changes in radiation levels outside the plant have been observed so far, the official added.

The incident comes days after Tepco admitted that as much as 300 tonnes of contaminated water a day was leaking from the damaged reactor² buildings to the sea.

Water is being pumped into the reactors, after cooling systems were knocked out by the tsunami.

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1 tsunami
n.海啸
参考例句：
Powerful quake sparks tsunami warning in Japan.大地震触发了日本的海啸预警。 Coastlines all around the Indian Ocean inundated by a huge tsunami.大海啸把印度洋沿岸地区都淹没了。

2 reactor
n.反应器；反应堆
参考例句：
The atomic reactor generates enormous amounts of thermal energy.原子反应堆发出大量的热能。 Inside the reactor the large molecules are cracked into smaller molecules.在反应堆里，大分子裂变为小分子。

3 reactors
起反应的人( reactor的名词复数 )；反应装置；原子炉；核反应堆
参考例句：
The TMI nuclear facility has two reactors. 三哩岛核设施有两个反应堆。来自英汉非文学 - 环境法 - 环境法 The earliest production reactors necessarily used normal uranium as fuel. 最早为生产用的反应堆，必须使用普通铀作为燃料。

4 puddle
n.(雨)水坑，泥潭
参考例句：
The boy hopped the mud puddle and ran down the walk.这个男孩跳过泥坑，沿着人行道跑了。 She tripped over and landed in a puddle.她绊了一下，跌在水坑里。

5 leakage
n.漏，泄漏；泄漏物；漏出量
参考例句：
Large areas of land have been contaminated by the leakage from the nuclear reactor.大片地区都被核反应堆的泄漏物污染了。 The continuing leakage is the result of the long crack in the pipe.这根管子上的那一条裂缝致使渗漏不断。

6 retrieve
vt.重新得到，收回；挽回，补救；检索
参考例句：
He was determined to retrieve his honor.他决心恢复名誉。 The men were trying to retrieve weapons left when the army abandoned the island.士兵们正试图找回军队从该岛撤退时留下的武器。

7 toxic
adj.有毒的，因中毒引起的
参考例句：
The factory had accidentally released a quantity of toxic waste into the sea.这家工厂意外泄漏大量有毒废物到海中。 There is a risk that toxic chemicals might be blasted into the atmosphere.爆炸后有毒化学物质可能会进入大气层。

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