Asbestos fibers can be in pipe insulation. Lead can be in dust that contains lead paint or in welding fumes from metal coatings. Road crews may breathe in silica when breaking up rocks. Chemicals can be in different forms. Liquids can harm skin and also be absorbed through the skin.
Mists are very small droplets of liquids that are inhaled.
Gases and vapors are inhaled. Private-sector employers must provide chemical information to their workers under the OSHA standard. In some of these states, workers have stronger rights than under the federal Hazard Communication Standard. You have rights to get information about chemicals in four main ways. Employers must maintain a list of all hazardous products known to be in the workplace.