Match List I with List II 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 exposed to toxicants

b.Estimation of the magnitude of the public health problems

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

d.Process of determining whether 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

Risk assessment proceeds through hazard identification, dose-response assessment, exposure assessment and finally risk characterization.

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 health effect.

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

Risk characterization estimates the overall magnitude of the resulting public health problem.

Together these four steps form the standard framework of human health risk assessment.

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