A reference dose (RfD) measures the amount of a
A) a pollutant one can be exposed to over a year without harm
B) a hazard one can be exposed to over a year before dying
C) an environmental hazard one can be exposed to over a lifetime before dying
D) all of the above
E) none of the above

Question

Quizplus · Accepted Answer

A reference dose (RfD) measures the amount of a substance one can be exposed to daily over a lifetime without appreciable risk of harm, not over a year or before dying.

A Reference Dose (RfD) Measures the Amount of a