%0 Journal Article %T Finding toxicological information: An approach for occupational health professionals %A Irja Laamanen %A Jos Verbeek %A Giuliano Franco %A Marika Lehtola %A Marita Luotamo %J Journal of Occupational Medicine and Toxicology %D 2008 %I BioMed Central %R 10.1186/1745-6673-3-18 %X We used a systematic search to find databases available on the Internet. Our criteria for the databases were the following: has a search engine, includes factual information on toxic and hazardous chemicals harmful for human health, and is free of charge. We developed both a qualitative and a quantitative rating method, which was used by four independent assessors to determine appropriateness, the quality of content, and ease of use of the database. Final ratings were based on a consensus of at least two evaluators.Out of 822 results we found 21 databases that met our inclusion criteria. Out of these 21 databases 14 are administered in the US, five in Europe, one in Australia, and one in Canada. Nine are administered by a governmental organization. No database achieved the maximum score of 27. The databases GESTIS, ESIS, Hazardous Substances Data Bank, TOXNET and NIOSH Pocket Guide to Chemical Hazards all scored more than 20 points. The following approach was developed for occupational health professionals searching for the toxicological properties of chemicals: start with the identity of the chemical; then search for health hazards, exposure route and measurement; next the limit values; and finally look for the preventive measures.A rating system of toxicological databases to assess their value for occupational health professionals discriminated well between databases in terms of their appropriateness, quality of information, and ease of use. Several American and European databases yielded high scores and provide a valuable source for occupational health professionals.Workers are exposed to toxic chemicals in many jobs. For the worker, exposure may constitute a risk, for occupational health professionals (OHPs) a need to respond. In case of exposure, OHPs must find out if the chemicals used in the workplace cause hazard(s), risk(s), symptom(s), and/or diseases. To prevent exposures they need to know the properties of the chemicals used and the relationship between %U http://www.occup-med.com/content/3/1/18