Logo image
Evaluation of PM2.5 Size Selectors Used in Speciation Samplers
Journal article   Open access   Peer reviewed

Evaluation of PM2.5 Size Selectors Used in Speciation Samplers

Thomas M Peters, Robert A Gussman, Lee C Kenny and Robert W Vanderpool
Aerosol science and technology, Vol.34(5), pp.422-429
01/01/2001
DOI: 10.1080/02786820119266
url
https://doi.org/10.1080/02786820119266View
Published (Version of record) Open Access

Abstract

The separation characteristics of the PM 2.5 aerosol size selectors used in speciation samplers developed for the U.S. EPA National PM 2.5 Chemical Speciation Trends Network were evaluated under clean conditions. Measurement of particle penetration versus aerodynamic diameter was conducted using an APS 3320 in conjunction with a polydisperse test dust. The resulting penetration curves were integrated with assumed ambient particle size distributions (40 CFR Part 53, Subpart F) to obtain an estimate of measured mass concentration and to predict bias relative to the PM 2.5 reference separator. The cutpoint of two sharp cut cyclones, from the family of cyclones developed by Kenny and Gussman (1997), compares favorably with the WINS, although possessing a slight tail that extends into the coarse particle mode. A second cyclone used by the Andersen Corp., AN 3.68, demonstrated the sharpest cut characteristics of the devices tested; however, it possesses a

Details

Metrics

12 Record Views
Logo image