3 questions for…
eco expert Guido Kleffel
Hello Guido, who are the GR environmental experts, the so-called guardian angels who perform the “condition assessment” of a property?
The Contaminated Sites Management (CSM) team consists of myself and two other experts in Germany as well as an extensive network of Bosch regional coordinators and external consultancy firms around the world. We examine both existing and new sites with regard to environmental pollution, such as soil and groundwater contamination and building pollutants.
What pollutants in the soil are we talking about?
Mainly chlorinated hydrocarbons (CHCs), which, until a few years ago, were still used worldwide as “miracle agents” for degreasing metal components, but also mineral oil hydrocarbons such as lubricating and cutting oils or diesel as well as heavy metals such as chromium. We also deal with unexploded ordnance from past wars and building contaminants such as asbestos.
How difficult is it to clean the soil?
The challenge in remediating environmental pollution is that each type of damage requires a different approach. We also need to factor in the geological conditions of the site as well as the type and quantity of the pollutant. Lubricating oils, for example, are lighter than water and therefore do not penetrate as deeply into the ground. CHCs, on the other hand, are heavier than water. They can therefore penetrate the groundwater surface and sink 50 meters or more below ground level.
Here you can watch a documentary on Contaminated Sites.