Journal article
Photometer response determination based on aerosol physical characteristics
American Industrial Hygiene Association journal, Vol.63(5), pp.578-585
09/01/2002
DOI: 10.1080/15428110208984743
Abstract
Aerosol photometers often are calibrated against field measurements of total or respirable aerosol concentrations. However, the response of these instruments to a particular aerosol concentration level will change if there is a change in aerosol size distribution. To determine a predictable correction factor that relates photometer to gravimetric measurements of an aerosol, the authors performed an analysis of photometer response relative to particle size distribution, density, and refractive index. A series of trials was performed at different concentration levels using both Arizona road dust and ground corn dust. The correction factor was calculated from a knowledge of the instrument response pattern relative to that of the dust used to calibrate the instruments. Results demonstrated that the calculated correction factors were within 10% of a correction factor predicted from the slope of a linear regression relating gravimetric measurements to the average of photometer readings taken during the sample period.
Details
- Title: Subtitle
- Photometer response determination based on aerosol physical characteristics
- Creators
- Patrick T O'ShaughnessyJeremy M Slagley
- Resource Type
- Journal article
- Publication Details
- American Industrial Hygiene Association journal, Vol.63(5), pp.578-585
- Publisher
- Taylor & Francis Ltd
- DOI
- 10.1080/15428110208984743
- ISSN
- 0002-8894
- eISSN
- 2163-369X
- Language
- English
- Date published
- 09/01/2002
- Academic Unit
- Occupational and Environmental Health; Civil and Environmental Engineering
- Record Identifier
- 9984214687902771
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