I don’t know where “here” is, but do you mean DDT? DEET is used in insect repellents but it’s rare to find contaminated soil with it.
Additionally, dilution is the solution to pollution. It’s really common to mix uncontaminated media into a contaminated area to make levels safer. Especially when you can’t truly clear away contamination for whatever reason, lower the relative amounts in the environment at that location is an accepted way to make it less impactful (and depending on the contaminate can made it truly safe).
I don’t know where “here” is, but do you mean DDT? DEET is used in insect repellents but it’s rare to find contaminated soil with it.
Additionally, dilution is the solution to pollution. It’s really common to mix uncontaminated media into a contaminated area to make levels safer. Especially when you can’t truly clear away contamination for whatever reason, lower the relative amounts in the environment at that location is an accepted way to make it less impactful (and depending on the contaminate can made it truly safe).
Ah yeah - I was mixing up DDT/DEET. DEET is still used today, and DDT was its predecessor. I meant DDT, thanks for the correction.