So regardless of what people believe about the effects, it is a real thing that can be detected. So it is at the very least a form of pollution. All the rest of the claims need not be used to justify saying that the DC needs to be designed not to pollute. That said, current medical science has a ton of gaps. It can’t say what levels of this is safe. So it should be treated as potentially dangerous.
They used to have xrays in shoe stores to help you get the right size shoes. They had no idea at the time how much cancer they were causing. We shouldn’t make the same type of mistake again.