Overcooking causes cancer


Tar is a liquid to semi-solid, black or brown, strongly smelling product that is used in the dry distillation of hard coal, brown coal, wood, peat and others. fossil fuels arise and consists mainly of hydrocarbon mixtures. For processing, tar is made liquid by heating.

Hazards in the manufacture of tar

The main hazards are in building protection and tar production. Tar fumes cause irritation of the eyes and airways and cause drowsiness and nausea. Burns often occur as a result of deflagrations, fires, boiling over or spilling of heated tar. Direct exposure to humans poses a risk of cancer. Skin cancer or skin changes that tend to develop cancer caused by tar are notifiable occupational diseases.

Room ventilation or respiratory protection is required when handling tar. These and other personal protective equipment that may be required, such as gloves, safety shoes or aprons, should also be included in operating instructions, as should a skin protection plan.

Because of their toxicological potency, tar products have been banned by the Chemicals Act since 1991.


  • Law on protection against dangerous substances (Chemicals Act - ChemG)
  • Ordinance on protection against hazardous substances (Hazardous Substances Ordinance - GefStoffV) (CHV 5)