radioactive contamination of soil

例句：

1. 1. The contaminated soil was found to contain harmfulchemicals.
   被污染的土壤被发现含有有害化学物质。
2. 2. The government has been working on aplan to clean up the radioactive contamination in the area.
   政府一直在努力制定一个计划，清理该地区的放射性污染。
3. 3. The cleanup efforts have been hampered by the difficulty of removing the radioactive contamination from the soil.
   清理工作由于从土壤中清除放射性污染的困难而受阻。