dust-borne radioactivity

例句：

1. 1. The scientist found that the dust-borne radioactivity in the air was a significant contributor to the cancer risk.
   科学家发现空气中的尘埃放射性是癌症风险的一个重大贡献者。
2. 2. The research team collected samples of dust-borne radioactivity from various locations around the city.
   研究团队从城市各个地方收集了尘埃放射性样本。
3. 3. The government is concerned about the potential health risks associated with high levels of dust-borne radioactivity.
   政府对高浓度尘埃放射性可能带来的健康风险感到担忧。