Background: Lack of information and accurate knowledge about the properties of chemicals and the exposure derived from its use; hinder health and safety measures to protect exposed workers. The aim of this study is to identify the elements that will help us draw a balance of chemical hazards in Spain and register the most dangerous chemicals at the workplace (by sector or field of activity).
Methods: Study of secondary sources, identification of risk perception by workers' representatives and study of the approach on chemical risk in risk assessments.