There isn't a problem with mold or radon, is there?

不会有霉菌或氡气的问题吧？

Nuclear radiation comes from natural sources, like radon, a gas which seeps up from the ground.

核辐射来源于自然物质，例如氡，一种从地下渗出的气体。

The average person receives 6.2 millisieverts of radiation from all sources annually, around a third due to radon.

平均每个人每年累计接收6.2毫西韦特辐射，大约分之一是氡。

In 2011, just before an earthquake struck the east coast of Japan, nearby researchers recorded surprisingly high concentrations of the radioactive isotope pair: radon and thoron.

2011年，就在地震袭击日本东海岸之际，附近的研究人员侦测到了高浓度的放射性同位素组：氡和钍，对此他十分震惊。

For the remainder that is ionizing, our exposures are usually low, and choices like getting your home tested for radon and wearing sunscreen can help reduce the associated health risks.

余下那些电离的，我度基本很低，而且像检测你家的氡含量和抹防晒霜这样的决策能够帮助减少相关的健康危害。