Recognition and evaluation -- What's the problem? -- Chemistry and the workplace -- What happens to toxic chemicals in the body? -- What's in the air? -- How deadly is dust? -- Basic toxicity and how to measure it -- Five steps to a healthier workplace -- Recognize the need -- Define the problem -- Evaluate the risk -- Establish permissible levels of exposure -- Control the exposure: administrative approach -- Control the exposure: engineering control -- Control the exposure: personal protective equipment.