Final answer:
The seven types of chemical contaminants found in workplaces are gases, solids, liquids, dust, fumes, mists, and vapors.
Step-by-step explanation:
Gases: These are substances in their gaseous state and can include toxic gases like carbon monoxide.
Solids: Chemical contaminants in solid form can be inorganic solids like asbestos or organic solids like pesticides.
Liquids: This includes liquid chemicals such as cleaning solvents or paints, which can contain toxic substances.
Dust: Fine particles of solid matter can become airborne and be hazardous to health, such as silica dust in construction sites.
Fumes: These are small solid particles that become airborne when a solid material vaporizes, like the fumes produced by welding.
Mists: Mists are formed when liquid droplets become suspended in the air, such as oil mists in manufacturing processes.
Vapors: These are formed when substances evaporate and become gaseous, like the vapors emitted by volatile organic compounds (VOCs).