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Elemental analysis of bulk aerosol samples collected with Drum impactor during MCMA 2003 field study.


EMSL Project ID
3586

Abstract

This study is part of a larger international monitoring effort, which took place in Mexico City in April-May 2003. As a part of the study, time resolved aerosol samples were collected during MCMA 2003 field study by automated cascade drum impactor developed by UC Davis. Multi-elemental analysis of size-segregated aerosols (deposited on Mylar or Teflon strips) will be done by high-energy protons in the EMSL tandem ion accelerator facility. X ray fluorescence (s-XRF), proton-induced x-ray emissions spectroscopy (PIXE), proton elastic scattering (PESA) and scanning transmission ion microscopy (STIM) will be used. This provides elemental mass analysis of bulk aerosol collected at the CENICA cite over the whole month of the study with time
resolution ~6 hours. In addition we will also get total mass of aerosols
and total hydrogen mass for the same time period. The results then will be extensively cross-correlated with the single particle data obtained from CCSEM analysis.

Project Details

Project type
Exploratory Research
Start Date
2003-06-01
End Date
2006-04-12
Status
Closed

Team

Principal Investigator

Mario Molina
Institution
University of California, San Diego

Team Members

Kirsten Johnson
Institution
Massachusetts Institute of Technology

Robert Disselkamp
Institution
Pacific Northwest National Laboratory

Alexander Laskin
Institution
Purdue University

Related Publications

Johnson KS, B de Foy, BM Zuberi, L Molina, MJ Molina, Y Xie, A Laskin, and V Shutthanandan. 2006. "Aerosol Composition and Source Apportionment in the Mexico City Metropolitan Area with PIXE/PESA/STIM and Multivariate Analysis." Atmospheric Chemistry and Physics 6(12):4591-4600.
V Shutthanandan, Y Xie, WH Brune, R Lesher, T Shirley, JL Jiminez, Salcedo D, TB Onasch, K Dzepina, MR Canagaratna, Q Zhang, AJ Huffman, P DeCarlo, JT Jayne, P Mortimer, DR Worsnop, CE Kolb, KS Johnson, BM Zuberi, L Marr, RM Volkamer, L Molina, MJ Molina, B Cardenas, R Bernabe, C Marquez, JS Gaffney, NA Marley, and A Laskin. 2006. "Characterization of Ambient Aerosols in Mexico City during the MCMA-2003 Campaign with Aerosol Mass Spectrometry. Results from the CENICA Supersite." Atmospheric Chemistry and Physics 6:925-946.