Soot Particle StudiesInstrument Inter-ComparisonProject Overview

被引：204

作者：

Cross, Eben S. ^{[1
,2
]}

Onasch, Timothy B. ^{[1
,2
]}

Ahern, Adam ^{[1
,2
]}

Wrobel, William ^{[1
]}

Slowik, Jay G. ^{[3
]}

Olfert, Jason ^{[4
,12
]}

Lack, Daniel A. ^{[5
,14
]}

Massoli, Paola ^{[2
,5
]}

Cappa, Christopher D. ^{[6
]}

Schwarz, Joshua P. ^{[5
]}

Spackman, J. Ryan ^{[5
]}

Fahey, David W. ^{[5
]}

Sedlacek, Arthur ^{[4
]}

Trimborn, Achim ^{[2
]}

Jayne, John T. ^{[2
]}

Freedman, Andrew ^{[2
]}

Williams, Leah R. ^{[2
]}

Ng, Nga L. ^{[2
]}

Mazzoleni, Claudio ^{[7
,13
]}

Dubey, Manvendra ^{[7
]}

Brem, Benjamin ^{[8
]}

Kok, Greg ^{[9
]}

Subramanian, R. ^{[9
]}

Freitag, Steffen ^{[10
]}

Clarke, Antony ^{[10
]}

Thornhill, Dwight ^{[11
]}

Marr, Linsey C. ^{[11
]}

Kolb, Charles E. ^{[2
]}

Worsnop, Douglas R. ^{[2
]}

Davidovits, Paul ^{[1
]}

机构：

[1] Boston Coll, Dept Chem, Chestnut Hill, MA 02167 USA

[2] Aerodyne Res Inc, Billerica, MA 01821 USA

[3] Univ Toronto, Dept Chem, Toronto, ON M5S 1A1, Canada

[4] Brookhaven Natl Lab, Upton, NY 11973 USA

[5] NOAA, Earth Syst Res Lab, Div Chem Sci, Boulder, CO USA

[6] Univ Calif Davis, Dept Civil & Environm Engn, Davis, CA 95616 USA

[7] Los Alamos Natl Lab, Los Alamos, NM USA

[8] Univ Illinois, Dept Civil & Environm Engn, Urbana, IL 61801 USA

[9] Droplet Measurement Technol, Boulder, CO USA

[10] Univ Hawaii, Dept Oceanog, Honolulu, HI 96822 USA

[11] Virginia Tech, Dept Civil & Environm Engn, Blacksburg, VA USA

[12] Univ Alberta, Dept Mech Engn, Edmonton, AB, Canada

[13] Michigan Technol Univ, Dept Phys, Houghton, MI 49931 USA

[14] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA

来源：

AEROSOL SCIENCE AND TECHNOLOGY | 2010年 / 44卷 / 08期

基金：

美国国家科学基金会;

关键词：

CAVITY-RING-DOWN; AEROSOL MASS-SPECTROMETER; AERODYNAMIC DIAMETER MEASUREMENTS; BLACK-CARBON; LIGHT-ABSORPTION; INTEGRATING NEPHELOMETER; DENSITY CHARACTERIZATION; OPTICAL-ABSORPTION; COMBINED MOBILITY; SULFURIC-ACID;

D O I：

10.1080/02786826.2010.482113

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

An inter-comparison study of instruments designed to measure the microphysical and optical properties of soot particles was completed. The following mass-based instruments were tested: Couette Centrifugal Particle Mass Analyzer (CPMA), Time-of-Flight Aerosol Mass SpectrometerScanning Mobility Particle Sizer (AMS-SMPS), Single Particle Soot Photometer (SP2), Soot Particle-Aerosol Mass Spectrometer (SP-AMS) and Photoelectric Aerosol Sensor (PAS2000CE). Optical instruments measured absorption (photoacoustic, interferometric, and filter-based), scattering (in situ), and extinction (light attenuation within an optical cavity). The study covered an experimental matrix consisting of 318 runs that systematically tested the performance of instruments across a range of parameters including: fuel equivalence ratio (1.8 phi 5), particle shape (mass-mobility exponent (Dfm), 2.0 Dfm 3.0), particle mobility size (30 dm 300 nm), black carbon mass (0.07 mBC 4.2 fg) and particle chemical composition. In selected runs, particles were coated with sulfuric acid or dioctyl sebacate (DOS) (0.5 rve 201 nm) where rve is the change in the volume equivalent radius due to the coating material. The effect of non-absorbing coatings on instrument response was determined. Changes in the morphology of fractal soot particles were monitored during coating and denuding processes and the effect of particle shape on instrument response was determined. The combination of optical and mass based measurements was used to determine the mass specific absorption coefficient for denuded soot particles. The single scattering albedo of the particles was also measured. An overview of the experiments and sample results are presented.

引用

页码：592 / 611

页数：20

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