Thank you for visiting the Occupational Safety and Health Network.
Everyone is exposed on and off the job to a variety of chemical substances; most do not present a hazard under ordinary circumstances, but they all have the potential for being injurious at some sufficiently high concentration and level of exposure. How a material is used is the major determinant of its hazard potential. Any substance contacting or entering the body will be injurious at some excessive level of exposure and can be theoretically tolerated without effect at some lower exposure.
You will find Chemical Safety covered in the following sections:
Toxicology, Chemical Information and MSDS