What is the difference between hazard assessment and exposure monitoring?

What is the difference between hazard assessment and exposure monitoring?

• A. Hazard assessment identifies hazards and assigns risk; exposure monitoring measures actual employee exposure to hazards to determine compliance with limits
• B. They are the same
• C. Hazard assessment measures exposure; exposure monitoring identifies hazards
• D. Neither is used in safety programs

Answer: (B)

Hazard assessment and exposure monitoring serve distinct but complementary roles in keeping workers safe. Hazard assessment is about identifying potential hazards in a job or task and evaluating the risk they pose, so you can decide which controls are needed to prevent harm. It’s a planning step that helps you design safer work before people are exposed. Exposure monitoring, by contrast, involves measuring how much of a hazard workers are actually exposed to during how they perform their tasks. This data is used to determine whether exposures stay within permissible limits and to verify that the controls in place are effective. So they’re not the same: hazard assessment sets up the safeguards by identifying hazards and prioritizing risks, while exposure monitoring checks real-world exposure levels to ensure compliance and protect workers. In practice, you identify and control hazards first, then use monitoring to confirm that those controls are doing their job and to trigger improvements if exposures are too high.

Hazard assessment and exposure monitoring serve distinct but complementary roles in keeping workers safe. Hazard assessment is about identifying potential hazards in a job or task and evaluating the risk they pose, so you can decide which controls are needed to prevent harm. It’s a planning step that helps you design safer work before people are exposed. Exposure monitoring, by contrast, involves measuring how much of a hazard workers are actually exposed to during how they perform their tasks. This data is used to determine whether exposures stay within permissible limits and to verify that the controls in place are effective.

So they’re not the same: hazard assessment sets up the safeguards by identifying hazards and prioritizing risks, while exposure monitoring checks real-world exposure levels to ensure compliance and protect workers. In practice, you identify and control hazards first, then use monitoring to confirm that those controls are doing their job and to trigger improvements if exposures are too high.