MKsports contaminated water may contain large amounts of radioactive carbon-14 and other radioactive isotopes. It takes tens or even hundreds of thousands of years for some atomic isotopes to decay." src="https://www.globaltimes.cn/Portals/0/attachment/2023/2023-02-28/d4c3adec-e7d5-4a27-947f-f0a143679c6f.jpeg" />

The contaminated water may contain large amounts of radioactive carbon-14 and other radioactive isotopes. It takes tens or even hundreds of thousands of years for some atomic isotopes to decay.