A level of the hydrogen isotope called radioactive tritium will remain in the water.

一种称为放射性氚氢同位素会留在水中。

Before being released, the water is filtered to remove isotopes, leaving only tritium, which is difficult to separate.

在排放污水之前，水经过过滤以去除同位素，只留下难以分离氚。

Tritium is present there in a very, very low concentration.

氚浓度非常非常低。

They say tritium is not considered harmful in small amounts.

他们表示，少量氚不认为是有害。

A radioactive isotope called tritium will remain in the waste water.

氚这种放射性同位素无法除。

Some elements of nuclear bombs, like radioactive tritium becomes stale over time and must be refurbished.

一些元素，比如放射性氢，会随着时间流逝而生锈，一定要翻新才能用。

The agency says tritium cannot enter the body through human skin.

该机构表示，氚不能通过人体皮肤进入人体。

Plant operator Tepco said the levels of tritium in the water are weakened to below official limits.

电站运营商东京电力公司表示，水中氚含量已降至官方限值以下。

Instead of hydrogen or deuterium, it contains tritium, an isotope of hydrogen that has two neutrons, and is radioactive.

与氢或重氢相比，它还含有氚——氢一种同位素，含有两个中子，具有放射性。

It turned out that the water contains more than tritium, some more radioactive materials that also in the water.

事实证明，污水中不仅含有氚，还含有一些放射性物质。

It's uncertain whether the ALPS can remove tritium, carbon-14 and other radionuclides effectively based on past experience, Deng said.

邓说，根据过去经验，ALPS 能否有效去除氚、碳-14 和其他放射性素还不确定。

Still, there is a form of heavy water you should definitely avoid: tritium oxide, or super-heavy water.

氚氧化物，或超重水。

It still contains a potentially harmful radionuclide called tritium.

它仍然含有一种潜在有害放射性素，称为氚。

Still, traces of some isotopes persist, like tritium, an isotope of hydrogen.

尽管如此，一些同位素痕迹仍然存在，比如氚，一种氢同位素。

Also, some of the neutrons will convert 6Li in the lining into tritium.

此外，一些中子会将衬里中 6Li 转化为氚。

The other one, tritium, we'd brew from lithium during the fusion reaction itself.

另一种是氚， 我们会在聚变反应过程中从锂中提取。

Experts say tritium is not harmful to humans in small amounts and has been regularly released from nuclear plants around the world.

专家表示，少量氚对人类无害，而且世界各地许多电站都会定期放出氚。

TEPCO and government officials say tritium – a radioactive form of hydrogen – is the only substance that cannot be removed from the water.

东京电力公司和政府官员说，氚——氢一种放射性形式——是唯一不能从水中去除物质。

Tritium has a minimal impact on human health unless ingested, and small amounts are naturally present in seawater and the atmosphere.

除非摄入，否则氚对人类健康影响微乎其微，海水和大气中天然存在少量氚。

The International Atomic Energy Agency (IAEA) said in its report that the treatment process can't remove all radioactive material, and tritium can't be removed at all.

国际原子能机构（国际原子能机构）在其报告中表示，处理过程不能去除所有放射性物质，尤其是氚根本无法去除。