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What Is an Exposure Pathways Evaluation?

An exposure pathway describes how people in a community might come into contact with a chemical. In an exposure pathways evaluation, five main elements are considered.

To view an explanation of each, click on the list entries that follow below.

Contaminant source of release

Place where the chemicals originated or were released

Environmental fate & transport

How contaminants move through and across different media (water, soil,air or food), with some degrading completely.

Exposure point of area

Specific location(s) where people may come in contact with a chemical in the environment

Exposure route

How the chemical enters a person’s body

Potentially exposed population

The people who have or who may have come in contact with contaminants