The site was found to be contaminated by radioactivity.

发现此地受放射线污染。

The level of radioactivity in the soil was found to be above recommended limits.

土壤的辐射水平被发现过规定的限度。

They argued that only a negligible rise in atmosphere radioactivity resulted from the test.

他们辩解说,由这次试验所造成的大气层放射活动的增加是微不足道的。

The dismantling of a nuclear reprocessing plant caused a leak of radioactivity yesterday.

昨天拆除核后处理工厂引起了放射物。

The zirconite is one of mineral resources associated with radioactivity.The exploitation and uses of zirconite would lead to pollution to the environment.

英砂是一种伴生矿资源,英砂的开发利用会对环境产生放射性污染。