ABSTRACT
The first thing we have to do is to nail down the language we will use. This is required precisely because so many academic disciplines are involved in exposure assessment and each has its own language. As EPA points out in its Exposure Assessment Guidelines, no agreed-upon definitions exist, and terminology in the literature is inconsistent. In preparing its guidelines, EPA had the wisdom to correct its own ways by following the lead of other scientific fields, which have been doing exposure assessments for at least a century.
