Discussion
Which of the following can be considered in Environmental Risk Assessment ?
Answer: D
All of the above can be considered in environmental risk assessment, option D. The risk from a hazardous substance depends on how long people or organisms are exposed, which is the exposure period, and on how harmful a given dose is, which is the potency of the toxic material.
The quality of the models (option C) matters because risk is estimated with models of dispersion and effect, and a poor model gives an unreliable estimate. Since each of options A, B and C is a relevant consideration, none of them alone is the full answer.
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