A couple of years ago, PFAS chemicals (used in, among other things, fire foam) were discovered in the area. There is concern that the work at the airport would cause the chemicals to leak into Vättern, which is a major drinking water source.

- It is very important to make sure that we have a good knowledge base so that you see the possible risks of toxins that can leak into the drinking water or Vättern, says Environment and Climate Minister Isabella Lövin (MP) to P4 Skaraborg.