Let's say you are building an underground structure (a root cellar, fallout shelter, etc.) This structure will require the use of some hazardous materials (plastics, etc). What method would you recommend to isolate those materials from the environment and limit interactions as much as possible?
This is a general thought experiment. There are many possible scenarios where something like this might occur.
Maybe, you've found an amazing piece of land at a ridiculously good price, but:
- It shares a small property boundary with some kind of dump, and you want to put a minimal barrier in to have some assurance that contaminants won't bleed across to your land.
- Or, part of the land contains an old fuel tank that might at some point crack open and contaminate the land
- Or, the previous owner has buried school buses to create an underground structure, but didn't do anything to ensure that they were stripped of hazardous material.
All environmental regulations aside, is there a way to compartmentalise, and isolate, so that you can have confidence that the rest of the land will be unaffected by it.
I guess to some degree, you could interpret this question as asking: "Is natural building only for pristine environments, or can it be done in less than optimal environments with certain mitigation strategies?"