If you use assistive technology (such as a screen reader) and need a
version of this document in a more accessible format, please email email@example.com.
Please tell us what format you need. It will help us if you say what assistive technology you use.
This report outlines a new model based on allometrically-derived respiration rates to calculate 222Rn daughter dose rates to terrestrial animals. A fractal biological model is used to scale respiration and calculate dose rates to plants.