Match List I (Risk assessment step) with List II (Method) and choose the correct answer from the options given below.

List I

i.Hazard identification

ii.Dose response assessment

iii.Exposure assessment

iv.Risk characterization

List II

a.Determining the size and nature of the population that has been exposed to toxicants

b.Estimation of the magnitude of the public health problem

c.Characterizing the relationship between the dose received and the adverse health effect

d.Process of determining whether or not a particular chemical is linked to a particular health effect

Ai-d, ii-c, iii-b, iv-a

Bi-d, ii-c, iii-a, iv-b ✓ Correct

Ci-a, ii-b, iii-c, iv-d

Di-a, ii-b, iii-d, iv-c

Correct answer: (B) i-d, ii-c, iii-a, iv-b

Explanation

Each risk assessment step pairs with the task that defines it.

Hazard identification determines whether a particular chemical is linked to a particular health effect.

Dose response assessment characterizes the relationship between the dose received and the adverse effect.

Exposure assessment determines the size and nature of the population exposed to the toxicant.

Risk characterization estimates the magnitude of the public health problem, completing the four correct pairings.

These four steps form the standard framework for human health risk assessment.

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