Research and analysis

Nasal clearance by particle transport: human biokinetics

This report (HPA-CRCE-031) is a compilation of data on extra-thoracic (ET) retention and clearance from a human study of nasal clearance.


HPA-CRCE-031: human biokinetics of nasal clearance by particle transport

This file may not be suitable for users of assistive technology. Request an accessible format.

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email Please tell us what format you need. It will help us if you say what assistive technology you use.


This report provides a comprehensive compilation of the data on extra-thoracic (ET) retention and ET clearance from a human volunteer study of nasal clearance conducted at the Health Protection Agency (HPA).

A summary of the experimental methods and programme of the study is given. It is not intended to review the results of the study but rather provide a complete set of data in one publication. References are given to published work in which results are analysed.

Published 1 April 2012