ground radiation

例句：

1. 1. The ground radiation from the nuclear reactor is a concern for environmental health.
   核反应堆产生的地面辐射对环境健康构成担忧。
2. 2. Ground radiation levels are monitored to ensure public safety.
   地面辐射水平被监测以确保公众安全。
3. 3. The study found that ground radiation could be a significant source of cancer risk.
   研究发现，地面辐射可能是癌症风险的一个重要来源。