By means of high-resolution mass spectrometry, the researchers detect the substances and their degradation products. In the lab, they try to simulate the variable conditions existing in nature and test different approaches. The scientists have high hopes for the use of modern nanotechnology, namely a combination of green vegetable coal and non-valent nano-iron. Both industry partners in the project are then responsible for adding this in cement pillars or bringing it to deep soil layers by means of a lance. "We do not know if it will actually work, but at least we have a solution".