Objectives : the aim of Evalutil is to document occupational exposure to asbestos and man-made mineral fibers. Methods : these databases provide grouped descriptive and metrological data from observed situations of occupational exposure, collected through the analysis of scientific articles and technical reports by industrial hygienists. Results : over 5,000 measurements were collected. We describe the occupations, economic activities, fiber-containing products, and operations on them that have been documented most often. Graphical measurement syntheses of these data show that the situations presented for asbestos and RCF, except mineral wools, report fiber concentrations mainly above historical occupational exposure limits. Conclusion : free access to these data in French and in English on the Internet (https://ssl2.isped.u-bordeaux2.fr/eva_003/) helps public health and prevention professionals to identify and characterize occupational exposures to fibers. Extended recently to nanoscale particles, Evalutil continues to contribute to the improvement of knowledge about exposure to inhaled particles and the health risks associated with them.