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Title: Characterization of Ambient Aerosols in Mexico City during the MCMA-2003 Campaign with Aerosol Mass Spectrometry. Results from the CENICA Supersite

Abstract

An Aerodyne Aerosol Mass Spectrometer (AMS) was deployed at the CENICA Supersite, while another was deployed in the Aerodyne Mobile Laboratory (AML) during the Mexico City Metropolitan Area field study (MCMA-2003) from March 29-May 4, 2003 to investigate particle concentrations, sources, and processes. This is the first of a series of papers reporting the AMS results from this campaign. The AMS provides real time information on mass concentration and composition of the non-refractory species in particulate matter less than 1 μm (NR PM1) with high time and size resolution. For the first time, we report field results from a beam width probe, which was used to study the shape and mixing state of the particles and to quantify potential losses of irregular particles due to beam broadening inside the AMS. Data from this probe show that no significant amount of irregular particles was lost due to excessive beam broadening. A comparison of the CENICA and AML AMSs measurements is presented, being the first published intercomparison between two quadrupole AMSs. The speciation, and mass concentrations reported by the two AMSs compared well. In order to account for the refractory material in the aerosol, we also present measurements of Black Carbon (BC)more » using an aethalometer and an estimate of the aerosol soil component obtained from PIXE analysis of filters. Comparisons of (AMS + BC + soil) mass concentration with other collocated particle instruments (a LASAIR Optical Particle Counter, a Tapered Element Oscillating Microbalance (TEOM) and a DustTrack Aerosol Monitor) are also presented. The comparisons show that the (AMS + BC + soil) mass concentration during MCMC-2003 is a good approximation to the total PM₂.₅ mass concentration.« less

Authors:
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Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org.:
USDOE
OSTI Identifier:
883201
Report Number(s):
PNNL-SA-44632
Journal ID: ISSN 1680-7324; 3586; KP1704020
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Atmospheric Chemistry and Physics (Online); Journal Volume: 6; Journal Issue: 4
Country of Publication:
United States
Language:
English
Subject:
Environmental Molecular Sciences Laboratory

Citation Formats

Salcedo, D, Onasch, Timothy B, Dzepina, K, Canagaratna, M R, Zhang, Q, Huffman, A J, DeCarlo, Peter, Jayne, J T, Mortimer, P, Worsnop, Douglas R, Kolb, C E, Johnson, Kirsten S, Zuberi, Bilal M, Marr, L, Volkamer, Rainer M, Molina, Luisa, Molina, Mario J, Cardenas, B, Bernabe, R, Marquez, C, Gaffney, Jeffrey S, Marley, Nancy A, Laskin, Alexander, Shutthanandan, V, Xie, YuLong, Brune, W H, Lesher, R, Shirley, T, and Jiminez, J L. Characterization of Ambient Aerosols in Mexico City during the MCMA-2003 Campaign with Aerosol Mass Spectrometry. Results from the CENICA Supersite. United States: N. p., 2006. Web. doi:10.5194/acp-6-925-2006.
Salcedo, D, Onasch, Timothy B, Dzepina, K, Canagaratna, M R, Zhang, Q, Huffman, A J, DeCarlo, Peter, Jayne, J T, Mortimer, P, Worsnop, Douglas R, Kolb, C E, Johnson, Kirsten S, Zuberi, Bilal M, Marr, L, Volkamer, Rainer M, Molina, Luisa, Molina, Mario J, Cardenas, B, Bernabe, R, Marquez, C, Gaffney, Jeffrey S, Marley, Nancy A, Laskin, Alexander, Shutthanandan, V, Xie, YuLong, Brune, W H, Lesher, R, Shirley, T, & Jiminez, J L. Characterization of Ambient Aerosols in Mexico City during the MCMA-2003 Campaign with Aerosol Mass Spectrometry. Results from the CENICA Supersite. United States. doi:10.5194/acp-6-925-2006.
Salcedo, D, Onasch, Timothy B, Dzepina, K, Canagaratna, M R, Zhang, Q, Huffman, A J, DeCarlo, Peter, Jayne, J T, Mortimer, P, Worsnop, Douglas R, Kolb, C E, Johnson, Kirsten S, Zuberi, Bilal M, Marr, L, Volkamer, Rainer M, Molina, Luisa, Molina, Mario J, Cardenas, B, Bernabe, R, Marquez, C, Gaffney, Jeffrey S, Marley, Nancy A, Laskin, Alexander, Shutthanandan, V, Xie, YuLong, Brune, W H, Lesher, R, Shirley, T, and Jiminez, J L. Fri . "Characterization of Ambient Aerosols in Mexico City during the MCMA-2003 Campaign with Aerosol Mass Spectrometry. Results from the CENICA Supersite". United States. doi:10.5194/acp-6-925-2006.
@article{osti_883201,
title = {Characterization of Ambient Aerosols in Mexico City during the MCMA-2003 Campaign with Aerosol Mass Spectrometry. Results from the CENICA Supersite},
author = {Salcedo, D and Onasch, Timothy B and Dzepina, K and Canagaratna, M R and Zhang, Q and Huffman, A J and DeCarlo, Peter and Jayne, J T and Mortimer, P and Worsnop, Douglas R and Kolb, C E and Johnson, Kirsten S and Zuberi, Bilal M and Marr, L and Volkamer, Rainer M and Molina, Luisa and Molina, Mario J and Cardenas, B and Bernabe, R and Marquez, C and Gaffney, Jeffrey S and Marley, Nancy A and Laskin, Alexander and Shutthanandan, V and Xie, YuLong and Brune, W H and Lesher, R and Shirley, T and Jiminez, J L},
abstractNote = {An Aerodyne Aerosol Mass Spectrometer (AMS) was deployed at the CENICA Supersite, while another was deployed in the Aerodyne Mobile Laboratory (AML) during the Mexico City Metropolitan Area field study (MCMA-2003) from March 29-May 4, 2003 to investigate particle concentrations, sources, and processes. This is the first of a series of papers reporting the AMS results from this campaign. The AMS provides real time information on mass concentration and composition of the non-refractory species in particulate matter less than 1 μm (NR PM1) with high time and size resolution. For the first time, we report field results from a beam width probe, which was used to study the shape and mixing state of the particles and to quantify potential losses of irregular particles due to beam broadening inside the AMS. Data from this probe show that no significant amount of irregular particles was lost due to excessive beam broadening. A comparison of the CENICA and AML AMSs measurements is presented, being the first published intercomparison between two quadrupole AMSs. The speciation, and mass concentrations reported by the two AMSs compared well. In order to account for the refractory material in the aerosol, we also present measurements of Black Carbon (BC) using an aethalometer and an estimate of the aerosol soil component obtained from PIXE analysis of filters. Comparisons of (AMS + BC + soil) mass concentration with other collocated particle instruments (a LASAIR Optical Particle Counter, a Tapered Element Oscillating Microbalance (TEOM) and a DustTrack Aerosol Monitor) are also presented. The comparisons show that the (AMS + BC + soil) mass concentration during MCMC-2003 is a good approximation to the total PM₂.₅ mass concentration.},
doi = {10.5194/acp-6-925-2006},
journal = {Atmospheric Chemistry and Physics (Online)},
number = 4,
volume = 6,
place = {United States},
year = {Fri Mar 24 00:00:00 EST 2006},
month = {Fri Mar 24 00:00:00 EST 2006}
}