Which is the most accurate definition of an exposure pathway?
A) The total amount of a contaminant that comes in direct contact with the body
B) Factor that determines a person's level of exposure to a contaminant
C) Method by which people are exposed to an environmental contaminant
D) Process to determine whether exposure to an environmental contaminant has occurred
Ans: C
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An exposure pathway is the method by which people are exposed to an environmental contaminant that originates from a specific source. Exposure is a measure of the total amount of a contaminant that comes in direct contact with the body. An exposure estimate is a method of determining a person's level of exposure to a contaminant on the basis of associated factors. An exposure history is a process to help determine whether an individual has been exposed to environmental contaminants.
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