What is the correct order of risk assessment due to exposure of some chemicals…
2022
What is the correct order of risk assessment due to exposure of some chemicals to humans?
(A) Dose Response Assessment
(B) Exposure Assessment
(C) Risk Characterization
(D) Hazard Identification
Choose the correct answer from the options given below:
Answer: D. D, A, B, C — CONCEPTHuman-health risk assessment separates four linked tasks: identify the harmful agent, establish how response changes with dose, estimate actual human…
- A.
A, B, C, D
- B.
D, B, C, A
- C.
C, D, A, B
- D.
D, A, B, C
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Show answer & explanation
Correct answer: D
CONCEPT
Human-health risk assessment separates four linked tasks: identify the harmful agent, establish how response changes with dose, estimate actual human exposure, and integrate the evidence into an overall risk statement.
This sequence keeps the intrinsic hazard distinct from the amount of exposure before the final characterization combines them.
APPLICATION
Hazard Identification (D): determine which adverse health effects the chemical can cause.
Dose-Response Assessment (A): relate the magnitude of exposure to the probability or severity of those effects.
Exposure Assessment (B): estimate how much, how often, and for how long people encounter the chemical.
Risk Characterization (C): combine the hazard, dose-response, and exposure findings and state the resulting risk and uncertainty.
CROSS-CHECK
Risk characterization must come last because it depends on the preceding hazard, dose-response, and exposure evidence. Therefore, the complete sequence is D, A, B, C.