Wacker Chemie AG - Sustainability Report 50 http://www.ffh-gebiete.de/ffh-gebiete/bundeslaender/index.php?bland=2 http://www.ffh-gebiete.de/ffh-gebiete/bundeslaender/index.php?bland=2 showed that the values measured there are considerably below the legally permissible limit values or guideline values.