Aerosols and Clouds

Source signatures of carbon monoxide and organic functional groups in Asian Pacific Regional Aerosol Characterization Experiment (ACE-Asia) submicron aerosol types

  1. S. F. Maria1,
  2. L. M. Russell2,
  3. B. J. Turpin3,
  4. R. J. Porcja3,
  5. T. L. Campos4,
  6. R. J. Weber5,
  7. B. J. Huebert6

Article first published online: 21 NOV 2003

DOI: 10.1029/2003JD003703

Issue

Journal of Geophysical Research: Atmospheres (1984–2012)

Journal of Geophysical Research: Atmospheres (1984–2012)

Volume 108, Issue D23, 16 December 2003

Additional Information

How to Cite

Maria, S. F., L. M. Russell, B. J. Turpin, R. J. Porcja, T. L. Campos, R. J. Weber, and B. J. Huebert (2003), Source signatures of carbon monoxide and organic functional groups in Asian Pacific Regional Aerosol Characterization Experiment (ACE-Asia) submicron aerosol types, J. Geophys. Res., 108, 8637, doi:10.1029/2003JD003703, D23.

Author Information

  1. 1

    Department of Chemical Engineering, Princeton University, Princeton, New Jersey, USA

  2. 2

    Scripps Institution of Oceanography, University of California at San Diego, La Jolla, California, USA

  3. 3

    Department of Environmental Science, Rutgers University, New Brunswick, New Jersey, USA

  4. 4

    National Center for Atmospheric Research, Boulder, Colorado, USA

  5. 5

    School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, Georgia, USA

  6. 6

    Department of Oceanography, University of Hawaii, Honolulu, Hawaii, USA

Publication History

  1. Issue published online: 21 NOV 2003
  2. Article first published online: 21 NOV 2003
  3. Manuscript Accepted: 27 AUG 2003
  4. Manuscript Revised: 30 JUL 2003
  5. Manuscript Received: 21 APR 2003

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Keywords:

  • organic aerosols;
  • organic carbon;
  • carbon monoxide

[1] Atmospheric submicron particles were collected on Teflon filters downstream of a three-stage concentrator aboard the National Center for Atmospheric Research C-130 aircraft near Japan during the Asian Pacific Regional Aerosol Characterization Experiment (ACE-Asia). Particle-phase organic carbon (OC) was quantified using Fourier transform infrared (FTIR) transmission spectroscopy. Silicate, carbonate, alkane, alkene, aromatic, alcohol, carbonyl, amine, and organosulfate functional groups were identified and separated with a four-solvent rinsing procedure. X-ray fluorescence identified elemental composition. Total OC constructed from FTIR measurements agreed with simultaneous thermal-optical OC measurements with a slope of 0.91 and an R2 value of 0.93. OC varied from 0.4 to 14.2 μg m−3, and organic mass varied from 0.6 to 19.6 μg m−3, representing on average 36% of the identified submicron aerosol mass. Measured carbon monoxide (CO) to OC slopes illustrate 10 groups of air from regions described by an Asian emissions inventory. The CO/OC slope is used to compare sources and their influence on organic composition. Fifty-two percent of ACE-Asia samples have CO/OC slopes indicative of biomass combustion. Unitless CO/OC slopes above 15 are associated with increased fractions of alcohol groups, unsaturated C-H groups, and inorganic nitrate. Increased carbonyl carbon fractions in air originating over northern Asia are consistent with secondary OC formation. Case studies in the boundary layer demonstrate that aerosol compositions downwind of large Asian aerosol sources show clear regional composition signatures.

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