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| Titel: |
Measurement of Aerosol Absorption Coefficient from Teflon Filters Using Integrating Plate and Integrating Sphere Techniques |
| Auteur: |
Campbell, Dave Copeland, Scott Cahill, Thomas |
| Verschenen in: |
Aerosol science and technology |
| Paginering: | Jaargang 22 (1995) nr. 3 pagina's 287-292 |
| Jaar: |
1995 |
| Inhoud: |
Optical transmission of aerosol samples collected on Teflon filters measured by the integrating plate method (IPM) has been used as a means of determining the aerosol absorption coefficient, bap, by the Air Quality Group at Crocker Nuclear Lab for over 9 years. The results of an intensive quality assurance program, using an integrating sphere photometer configured for measurement of the transmission of filters, demonstrate that the IPM is highly precise (±1%) and does not suffer from inherent overestimation of particle absorption due to internal scattering, a problem commonly attributed to IPM measurements of aerosols collected on Nuclepore filters. If the appropriate correction is applied when filter loading exceeds a monolayer of particles, bap can be accurately determined by the IPM for aerosol samples collected on Teflon filters. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 5 van 7 gevonden artikelen
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