Wood dust is released during the processing of wood, for example during sawing, sanding and milling. In the Netherlands, workers are mainly exposed to wood dust in the forest industry, the construction sector and the wood processing industry. Occupational exposure to wood dust has been associated with several health effects. There is especially strong evidence for the occurrence of respiratory symptoms and nasal cancer.
The Dutch Expert Committee on Occupational Safety (DECOS), in collaboration with the Scandinavian Nordic Expert Group (NEG), has calculated cancer risk values: values that correspond to predetermined risk levels. A recommended value of 0.1 milligrams of inhalable wood dust particles per cubic metre (m3) of air corresponds to the target risk level. The recommended value corresponding to the prohibition risk level is 2.9 mg/m3. For this calculation it is assumed that workers are exposed to this concentration throughout their working life (40 years). The Ministry of Social Affairs and Employment can use the recommended values to set a legal limit value for occupational exposure to wood dust to protect workers.