Chemical Substance Database for Occupational Hygiene

All documentation on occupational hygiene, On One Platform

DOHSBase Online is the most comprehensive chemical substance database built specifically for occupational hygiene professionals. With data on more than 325,000 substances – including occupational exposure limits, DNELs, kick-off values, and measurement methods – it is the definitive OEL database for anyone responsible for chemical safety in the workplace. Our platform brings together regulatory data from the United States, Europe, and Australia into a single, hierarchically structured resource, so you always see the most authoritative limit value first.

Whether you are conducting exposure assessments, preparing risk inventories, or verifying compliance with national regulations, DOHSBase provides the data foundation you need. Occupational hygienists, health and safety professionals, toxicologists, and regulatory compliance officers rely on DOHSBase daily to streamline their work and make well-informed decisions. Consultancy firms use it as the backbone of client reports, while employers trust it to demonstrate due diligence during inspections. Founded in 1992 by the Dutch Association of Occupational Hygienists (NVvA), DOHSBase has been the reference standard for occupational hygiene data for over thirty years. Start with a free trial and explore ten substances at no cost. Watch the DOHSBase Online product video for more information!