Derivation and Use of Simple Relationships between Aerodynamic and Optical Particle Measurements
| Autor: | Randal S. Martin, Christian C. Marchant, John H. Prueger, Derek S. Jones, Michael Wojcik, Kori D. Moore, Jerry L. Hatfield, Richard L. Pfeiffer, William J. Bradford |
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| Rok vydání: | 2015 |
| Předmět: |
Environmental Engineering
Monitoring Chemistry Instrumentation Analytical chemistry Conversion factor Particulates complex mixtures Remote Sensing Filter (large eddy simulation) Particles Air Pollution Calibration Environmental Chemistry Mass concentration (chemistry) Particle Particle counter General Environmental Science Civil and Structural Engineering |
| Zdroj: | Space Dynamics Lab Publications |
| ISSN: | 1943-7870 0733-9372 |
| DOI: | 10.1061/(asce)ee.1943-7870.0000893 |
| Popis: | A simple relationship, referred to as a mass conversion factor (MCF), is presented to convert optically based particle measurements to mass concentration. It is calculated from filter-based samples and optical particle counter (OPC) data on a daily or sample period basis. The MCF allows for greater temporal and spatial mass concentration information than typical filter-based measurements. Results of MCF calculations from several field studies are summarized. Pairwise comparisons from a collocated study with multiple OPCs and mass samplers suggest the minimum variability of the MCF is 5–10%. The variability of the MCF within a sample period during a field study with distributed samplers averaged 17–21%. In addition, the precision of the Airmetrics MiniVol Portable Air Sampler for particulate matter (PM) was typically |
| Databáze: | OpenAIRE |
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