Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
A) The particulate size of aerosolized EPFRs was determined using a Scanning Mobility Particle Sizer (SMPS). There was no significant difference in aerosolized EFPR hi and EPFR lo particle size measured during exposure. B) Tabular form of EPFR aerosol numbers, concentration, and size distribution determined using SMPS during exposure.
