Identification of sources of atmospheric PM at the Pittsburgh Supersite - Part II: Quantitative comparisons of single particle, particle number, and particle mass measurements. Bein, K., J., Zhao, Y., J., Pekney, N., J., Davidson, C., I., Johnston, M., V., & Wexler, A., S. Atmos. Environ., 40:S424-S444, 2006. abstract bibtex A single particle mass spectrometer, RSMS-3, and a
MOUDI were deployed during the Pittsburgh Air Quality Study (PAQS),
July 2001-September 2002, to obtain size resolved measurements of
elemental composition for particulate matter (PM) within the
Pittsburgh area. Elemental mass distributions from analysis of the
MOUDI stages were directly compared to those constructed using the
single particle data, in conjunction with coincident SMPS
measurements, for specific days within the PAQS. Results from one
episode on 27 October 2001 showed that approximately 80% of the
metal containing particles detected on this day belonged to the
Na/Si/K/Ca/Fe/Ga/Pb particle class. The density and shape factor of
these particles were estimated to be 3.9 +/- 0.8 g/cc and 1.5 +/-
0.2, respectively, and the relative sensitivity factors for
individual metals showed little variation with respect to particle
diameter over the size range of 70-800 nm.
Compared to the 27 October 2001 episode, there was a larger degree
of variability in the metal containing particles detected during
another episode on 14 March 2002. The Ca and Pb mass distributions
from this day represent an ensemble of externally mixed particles.
Estimates of particle density were provided for the dominant
particle types, including EC/OC/Ca, Al/Si/Ca/Fe, EC/OC/Pb and
Na/K/Zn/Pb, and estimates of particle shape factor were provided
for the EC/OC/Ca and Na/K/Zn/Pb classes. Comparison with the 27
October 2001 Ca and Pb mass distributions revealed that the RSMS
data reconstructed the MOUDI mass much better from the Ca/Pb
containing particles detected on 14 March 2002 than those observed
on 27 October 2001, suggesting that the single particle instrument
sensitivity to both Ca and Pb depends on the particle matrix. (c)
2006 Elsevier Ltd. All rights reserved. C1 Univ Calif Davis, Dept
Land Air & Water Resources, Davis, CA 95616 USA. Univ Calif Davis,
Dept Mech & Aeronaut Engn, Davis, CA 95616 USA. Carnegie Mellon
Univ, Dept Civil & Environm Engn, Pittsburgh, PA 15213 USA.
Carnegie Mellon Univ, Dept Publ Policy, Pittsburgh, PA 15213 USA.
Univ Delaware, Dept Chem & Biochem, Newark, DE 19716 USA. Univ
Calif Davis, Dept Mech & Aeronaut Engn, Davis, CA 95616 USA.
@article{
title = {Identification of sources of atmospheric PM at the Pittsburgh Supersite - Part II: Quantitative comparisons of single particle, particle number, and particle mass measurements},
type = {article},
year = {2006},
pages = {S424-S444},
volume = {40},
id = {16841b06-25ce-3cb5-a301-7d3c171d298d},
created = {2014-10-08T16:28:18.000Z},
file_attached = {false},
profile_id = {363623ef-1990-38f1-b354-f5cdaa6548b2},
group_id = {02267cec-5558-3876-9cfc-78d056bad5b9},
last_modified = {2017-03-14T17:32:24.802Z},
read = {false},
starred = {false},
authored = {false},
confirmed = {true},
hidden = {false},
citation_key = {Bein:AE:2006a},
source_type = {article},
private_publication = {false},
abstract = {A single particle mass spectrometer, RSMS-3, and a
MOUDI were deployed during the Pittsburgh Air Quality Study (PAQS),
July 2001-September 2002, to obtain size resolved measurements of
elemental composition for particulate matter (PM) within the
Pittsburgh area. Elemental mass distributions from analysis of the
MOUDI stages were directly compared to those constructed using the
single particle data, in conjunction with coincident SMPS
measurements, for specific days within the PAQS. Results from one
episode on 27 October 2001 showed that approximately 80% of the
metal containing particles detected on this day belonged to the
Na/Si/K/Ca/Fe/Ga/Pb particle class. The density and shape factor of
these particles were estimated to be 3.9 +/- 0.8 g/cc and 1.5 +/-
0.2, respectively, and the relative sensitivity factors for
individual metals showed little variation with respect to particle
diameter over the size range of 70-800 nm.
Compared to the 27 October 2001 episode, there was a larger degree
of variability in the metal containing particles detected during
another episode on 14 March 2002. The Ca and Pb mass distributions
from this day represent an ensemble of externally mixed particles.
Estimates of particle density were provided for the dominant
particle types, including EC/OC/Ca, Al/Si/Ca/Fe, EC/OC/Pb and
Na/K/Zn/Pb, and estimates of particle shape factor were provided
for the EC/OC/Ca and Na/K/Zn/Pb classes. Comparison with the 27
October 2001 Ca and Pb mass distributions revealed that the RSMS
data reconstructed the MOUDI mass much better from the Ca/Pb
containing particles detected on 14 March 2002 than those observed
on 27 October 2001, suggesting that the single particle instrument
sensitivity to both Ca and Pb depends on the particle matrix. (c)
2006 Elsevier Ltd. All rights reserved. C1 Univ Calif Davis, Dept
Land Air & Water Resources, Davis, CA 95616 USA. Univ Calif Davis,
Dept Mech & Aeronaut Engn, Davis, CA 95616 USA. Carnegie Mellon
Univ, Dept Civil & Environm Engn, Pittsburgh, PA 15213 USA.
Carnegie Mellon Univ, Dept Publ Policy, Pittsburgh, PA 15213 USA.
Univ Delaware, Dept Chem & Biochem, Newark, DE 19716 USA. Univ
Calif Davis, Dept Mech & Aeronaut Engn, Davis, CA 95616 USA.},
bibtype = {article},
author = {Bein, K J and Zhao, Y J and Pekney, N J and Davidson, C I and Johnston, M V and Wexler, A S},
journal = {Atmos. Environ.}
}
Downloads: 0
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Elemental mass distributions from analysis of the\nMOUDI stages were directly compared to those constructed using the\nsingle particle data, in conjunction with coincident SMPS\nmeasurements, for specific days within the PAQS. Results from one\nepisode on 27 October 2001 showed that approximately 80% of the\nmetal containing particles detected on this day belonged to the\nNa/Si/K/Ca/Fe/Ga/Pb particle class. The density and shape factor of\nthese particles were estimated to be 3.9 +/- 0.8 g/cc and 1.5 +/-\n0.2, respectively, and the relative sensitivity factors for\nindividual metals showed little variation with respect to particle\ndiameter over the size range of 70-800 nm.\nCompared to the 27 October 2001 episode, there was a larger degree\nof variability in the metal containing particles detected during\nanother episode on 14 March 2002. The Ca and Pb mass distributions\nfrom this day represent an ensemble of externally mixed particles.\nEstimates of particle density were provided for the dominant\nparticle types, including EC/OC/Ca, Al/Si/Ca/Fe, EC/OC/Pb and\nNa/K/Zn/Pb, and estimates of particle shape factor were provided\nfor the EC/OC/Ca and Na/K/Zn/Pb classes. Comparison with the 27\nOctober 2001 Ca and Pb mass distributions revealed that the RSMS\ndata reconstructed the MOUDI mass much better from the Ca/Pb\ncontaining particles detected on 14 March 2002 than those observed\non 27 October 2001, suggesting that the single particle instrument\nsensitivity to both Ca and Pb depends on the particle matrix. (c)\n2006 Elsevier Ltd. All rights reserved. C1 Univ Calif Davis, Dept\nLand Air & Water Resources, Davis, CA 95616 USA. Univ Calif Davis,\nDept Mech & Aeronaut Engn, Davis, CA 95616 USA. Carnegie Mellon\nUniv, Dept Civil & Environm Engn, Pittsburgh, PA 15213 USA.\nCarnegie Mellon Univ, Dept Publ Policy, Pittsburgh, PA 15213 USA.\nUniv Delaware, Dept Chem & Biochem, Newark, DE 19716 USA. Univ\nCalif Davis, Dept Mech & Aeronaut Engn, Davis, CA 95616 USA.","bibtype":"article","author":"Bein, K J and Zhao, Y J and Pekney, N J and Davidson, C I and Johnston, M V and Wexler, A S","journal":"Atmos. Environ.","bibtex":"@article{\n title = {Identification of sources of atmospheric PM at the Pittsburgh Supersite - Part II: Quantitative comparisons of single particle, particle number, and particle mass measurements},\n type = {article},\n year = {2006},\n pages = {S424-S444},\n volume = {40},\n id = {16841b06-25ce-3cb5-a301-7d3c171d298d},\n created = {2014-10-08T16:28:18.000Z},\n file_attached = {false},\n profile_id = {363623ef-1990-38f1-b354-f5cdaa6548b2},\n group_id = {02267cec-5558-3876-9cfc-78d056bad5b9},\n last_modified = {2017-03-14T17:32:24.802Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n citation_key = {Bein:AE:2006a},\n source_type = {article},\n private_publication = {false},\n abstract = {A single particle mass spectrometer, RSMS-3, and a\nMOUDI were deployed during the Pittsburgh Air Quality Study (PAQS),\nJuly 2001-September 2002, to obtain size resolved measurements of\nelemental composition for particulate matter (PM) within the\nPittsburgh area. Elemental mass distributions from analysis of the\nMOUDI stages were directly compared to those constructed using the\nsingle particle data, in conjunction with coincident SMPS\nmeasurements, for specific days within the PAQS. Results from one\nepisode on 27 October 2001 showed that approximately 80% of the\nmetal containing particles detected on this day belonged to the\nNa/Si/K/Ca/Fe/Ga/Pb particle class. The density and shape factor of\nthese particles were estimated to be 3.9 +/- 0.8 g/cc and 1.5 +/-\n0.2, respectively, and the relative sensitivity factors for\nindividual metals showed little variation with respect to particle\ndiameter over the size range of 70-800 nm.\nCompared to the 27 October 2001 episode, there was a larger degree\nof variability in the metal containing particles detected during\nanother episode on 14 March 2002. The Ca and Pb mass distributions\nfrom this day represent an ensemble of externally mixed particles.\nEstimates of particle density were provided for the dominant\nparticle types, including EC/OC/Ca, Al/Si/Ca/Fe, EC/OC/Pb and\nNa/K/Zn/Pb, and estimates of particle shape factor were provided\nfor the EC/OC/Ca and Na/K/Zn/Pb classes. Comparison with the 27\nOctober 2001 Ca and Pb mass distributions revealed that the RSMS\ndata reconstructed the MOUDI mass much better from the Ca/Pb\ncontaining particles detected on 14 March 2002 than those observed\non 27 October 2001, suggesting that the single particle instrument\nsensitivity to both Ca and Pb depends on the particle matrix. (c)\n2006 Elsevier Ltd. All rights reserved. C1 Univ Calif Davis, Dept\nLand Air & Water Resources, Davis, CA 95616 USA. Univ Calif Davis,\nDept Mech & Aeronaut Engn, Davis, CA 95616 USA. Carnegie Mellon\nUniv, Dept Civil & Environm Engn, Pittsburgh, PA 15213 USA.\nCarnegie Mellon Univ, Dept Publ Policy, Pittsburgh, PA 15213 USA.\nUniv Delaware, Dept Chem & Biochem, Newark, DE 19716 USA. Univ\nCalif Davis, Dept Mech & Aeronaut Engn, Davis, CA 95616 USA.},\n bibtype = {article},\n author = {Bein, K J and Zhao, Y J and Pekney, N J and Davidson, C I and Johnston, M V and Wexler, A S},\n journal = {Atmos. 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