What safety measures are required?

• A. Respirator fit testing required.
• B. PPE, ventilation, monitoring.
• C. Routine medical checkups.
• D. Labeling and storage requirements.

Answer: (B)

Safety measures in handling hazardous substances rely on layered controls that protect workers at different stages of exposure. The strongest answer captures three essential elements: personal protective equipment to create a barrier between the worker and the chemical; ventilation or other engineering controls to reduce the amount of contaminant in the air; and monitoring to check exposure levels and ensure the controls are doing their job. PPE helps prevent contact and inhalation, ventilation lowers ambient concentrations, and monitoring provides data to adjust practices and confirm safety.

While respirator fit testing is important as part of a respirator program, it is one component of PPE rather than the general set of safety measures required. Routine medical checkups relate to health surveillance, not the everyday safety controls applied on site. Labeling and storage requirements are essential for safe handling and segregation, but they do not by themselves represent the active controls over exposure in the work area.