... the carcinogenicity of oak and beech dusts has been confirmed in epidemiological studies on workers exposed; whereas it is highly probable that other types of hardwood dust can also cause cancer in humans; whereas therefore the workers concerned are exposed to a serious potential risk of developing cancer ...
Это интересно
hardwood - dense, close-grained wood from deciduous dicotyledonous trees (oak, beech, ash, teak etc.)
