Article from 30.11.2014 | Last changed: 10.11.2017
Chemical Quality Standards and Assessment
… to chronic toxicity is less than 12. For hexachlorobenzene, hexachlorobutadiene and mercury, which highly accumulate within the food chain, an environmental quality … monitoring. Germany has choosen this for HCB and hexchlorobutadiene, but not for mercury due to methodological problems. The environmental quality standard for … status that is free from anthropogenic impairments. For nutrients, quality class II contains values derived from previous assessment procedures. The subsequent classes …