The air samples of workers exposed to chemical substances collected by CSST inspectors and occupational health professionals are analyzed in the IRSST's laboratories. The interpretation of the results of these analyses determines which substances are present at high concentrations and in which activity sectors. This information has been compiled for members of the review committee of the standards of the Regulation respecting occupational health and safety (ROHS), the CSST, the health network, as well as joint sector-based associations. This study has led to a series of documents being produced that enable interested people to establish regulatory, strategic and operational priorities, while identifying potential research priorities. It is part of a process to monitor and identify substances that should be the subject of research or of measures to control worker exposure. The authors have also produced annual knowledge summaries of the results of the analyses of the chemical substances produced at the IRSST for the years 2001 to 2005 (catalogue numbers B-071 to B-075).
