During an environmental health assessment, which question is most likely to reveal occupational exposure risk?

• A. Is anyone else in your family having these symptoms?
• B. Can you tell me about your house or apartment?
• C. What jobs have you held longest?
• D. Where do you live?

Answer: (C)

Understanding exposure history means looking for sources of risk in a person’s work life. Asking about the jobs a person has held, especially the ones they’ve had the longest, goes straight to the heart of occupational exposure risk. The longest-held job reveals sustained contact with potential workplace hazards—chemicals, dusts, solvents, fumes, or other agents—that could explain symptoms developed over time. It also helps identify specific occupations associated with known risks, guiding further questions or testing.

Other questions touch on non-work environments—for example, family illness might point to genetics or infectious causes, housing conditions could reveal home environmental hazards, and where someone lives may indicate neighborhood exposures. These don’t target workplace exposure as directly, so they’re less likely to uncover occupational links to symptoms.