pollutant

Building products which come into contact with groundwater or rainwater should not release harmful amounts of pollutants. An environmentally compatible choice of products requires reliable and comparable data on the leaching of substances. UBA has published reference data based on new European leaching tests, which are now available for producers and users.

Compost and sewage sludge contain valuable nutrients and humus substances that farmers traditionally use as organic fertilizer so as to reduce mineral fertilizer use. But unfortunately, compost and in particular sewage sludge, contain pollutants such as chemicals, heavy metals and pharmaceutical residues that are hazardous to the environment and human health.