Generally it is of common knowledge that risk assessment in using hazardous or potentionally hazardous chemical substances, either the exposition itself or the risk of those materials has to be minimised. The potential danger for someone can be derived from the basic fact, that direct contact with a potentially harmful substance has to be avoided.Currently, it is still quite unclear, which nanoparticulated material in which state and from reveals which type of danger. It is also unclear, if current measurement and classification of conventional materials, such as critical mass concentration at working places can be applied for the industrial usage of nanoparticles at all.
CEA is a French government-funded technological research organisation in four main areas: low-carbon energies, defense and security, information technologies and health technologies. A prominent player in the European Research Area, it is involved in setting up collaborative projects with many partners around the world.