Which action best protects worker health when handling hazardous substances?

• A. To reduce paperwork.
• B. To replace all safety measures.
• C. To assess and control exposure to hazardous substances and protect worker health.
• D. To avoid monitoring hazards.

Answer: (C)

Protecting worker health hinges on assessing and controlling exposure to hazardous substances. When you identify what hazards exist and how workers might be exposed, you can put in place effective controls to keep exposure levels within safe limits. This uses the hierarchy of controls: eliminate or substitute the hazardous substance when possible, apply engineering controls like ventilation or enclosure, implement administrative controls such as training and procedures, and use PPE as a last resort. For instance, monitoring air concentrations, using proper containment, and providing appropriate protective equipment and training all contribute to safer handling. Actions that focus only on paperwork, remove safety measures, or avoid monitoring hazards fail to reduce actual exposure and do not protect health.