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The Impact of Biogenic Carbon Emissions on Aerosol Absorption in Mexico City : Volume 8, Issue 5 (24/10/2008)

By Marley, N. A.

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Book Id: WPLBN0003998341
Format Type: PDF Article :
File Size: Pages 32
Reproduction Date: 2015

Title: The Impact of Biogenic Carbon Emissions on Aerosol Absorption in Mexico City : Volume 8, Issue 5 (24/10/2008)  
Author: Marley, N. A.
Volume: Vol. 8, Issue 5
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Tackett, M. J., Martinez, N., Sturchio, N. C., Gaffney, J. S., Steelman, K., Guilderson, T.,...Machany-Rivera, A. (2008). The Impact of Biogenic Carbon Emissions on Aerosol Absorption in Mexico City : Volume 8, Issue 5 (24/10/2008). Retrieved from

Description: Graduate Institute of Technology, University of Arkansas at Little Rock, Little Rock, AR, USA. In order to determine the wavelength dependence of atmospheric aerosol absorption in the Mexico City area, the absorption Ångstrom exponents (AAEs) were calculated from aerosol absorption measurements at seven wavelengths obtained with a seven-channel aethalometer during two field campaigns, the Mexico City Metropolitan Area study in April 2003 (MCMA 2003) and the Megacity Initiative: Local and Global Research Observations in March 2006 (MILAGRO). The AAEs varied from 0.76 to 1.56 in 2003 and from 0.54 to 1.52 in 2006. The AAE values determined in the afternoon were consistently higher than the corresponding morning values, suggesting the photochemical formation of absorbing secondary organic aerosols (SOA) in the afternoon.

The AAE values were compared to stable and radiocarbon isotopic measurements of aerosol samples collected at the same time to determine the sources of the aerosol carbon. The fraction of modern carbon (fM) in the aerosol samples, as determined from 14C analysis, showed that 70% of the carbonaceous aerosols in Mexico City were from modern sources, indicating a significant impact from biomass burning during both field campaigns. The 13C/12C ratios of the aerosol samples illustrate the significant impact of Yucatan forest fires (C-3 plants) in 2003 and local grass fires (C-4 plants) at site T1 in 2006. A direct comparison of the fM values, stable carbon isotope ratios, and calculated aerosol AAEs suggested that the wavelength dependence of the aerosol absorption was controlled by the biogenically derived aerosol components.

The impact of biogenic carbon emissions on aerosol absorption in Mexico City

Allen, D.: Gulf Coast Aerosol Research and Characterization Program (Houston Supersite). Progress Report, August 2001, Environmental Protection Agency Technology Transfer Network Ambient Monitoring Technology Information Center, Houston Supersite Project Information,, 2001.; Arnott, W. P., Hamasha, K., Moosmuller, H., Sheridan, P. J., and Ogren, J. A.: Towards Aerosol Light-Absorption Measurements with a 7-Wavelength Aethalometer: Evaluation with a Photoacoustic Instrument and 3-Wavelength Nephelometer, Aerosol Sci. Technol., 39, 17–29, 2005.; Bench, G., Fallon, S., Schichtel, B., Malm, W., and McDade, C.: Relative contributions of fossil and contemporary carbon sources to PM$_2.5$ aerosols at nine Interagency Monitoring for Protection of Visual Environments (IMPROVE) network sites, J. Geophys. Res., 112, D10205, doi:10.1029/2006JD007708, 2007.; Bergstrom, R. W., Russell, P. B., and Hignett, P. B.: The wavelength dependence of black carbon particles: Predictions and results from TARFOX experiment and implications for the aerosol single scattering albedo, J. Atmos. Sci., 59, 567–577, 2002.; Bergstrom, R. W., Pilewskie, P., Russell, P. B., Redemann, J., Bond, T. C., Quinn, P. K., and Sierau, B.: Spectral absorption properties of atmospheric aerosols, Atmos. Chem. Phys., 7, 5937–5943, 2007.; Boutton, T. W.: Stable carbon isotope ratios of natural materials II. Atmospheric, terrestrial, marine, and freshwater environments, in: Carbon Isotope Techniques, edited by: Coleman, D. C. and Fry, B., 173–183, 1991.; Cappiello, A., De Simoni, E., Fiorucci, C., Mangani, F., Palma, P., Trufelli, H., Decesari, S., Facchini, M. C., and Fuzzi, S.: Molecular characterization of the water-soluble organic compounds in fogwater by ESIMS/MS, Environ. Sci. Technol., 37, 1229–1240, 2003.; Castro, T., Madronich, S., Rivale, S., Muhlia, A., and Mar, B.: The influence of aerosols on photochemical smog in Mexico City, Atmos. Environ., 35, 1765–1772, 2001.; Craig, H.: Isotopic standards for carbon and oxygen and correction factors for mass-spectrometric analysis of carbon dioxide, Geochimica et Cosmochimica Acta, 12, 133–149, 1957.; Coplen, T. B., Brand, W. A., Gehre, M., Gröning, M., Meijer, H. A. J., Toman, B., and Verkouteren, R. M.: After two decades a second anchor for the VPDB $\delta ^13$C scale, Rapid Communications in Mass Spectrometry, 20, 3165–3166, 2006.; Currie, L. A., Klouda, G. A., and Gerlach, R. W.: Radiocarbon: Natures tracer for carbonaceous pollutants, in: Proceedings of the 1981 International Conference on Residential Solid Fuels: Environmental Impacts and Solutions, edited by: Cooper, J. A. and Malek, D., Oregon Graduate Center, Beaverton, OR, p. 365–385, 1982.; Decesari, S., Facchini, M. C., Matta, E., Mircea, M., Fuzzi, S., Chughtai, A. R., and Smith, D. M.: Water soluble organic compounds formed by oxidation of soot, Atmos. Environ., 36, 1827–1832, 2002.; de Foy, B., Varela, J. R., Molina, L. T., and Molina, M. J.: Rapid ventilation of the Mexico City basin and regional fate of the urban plume, Atmos. Chem. Phys., 6, 2321–2335, 2006.; Dickerson, R. R., Kondragunta, S., Stenchikov, G., Civerolo, K. L., Doddridge, B. G., and Holben, N.: The impact of aerosols on solar ultraviolet radiation and photochemical smog, Science, 278, 827–830, 1997.; Doran, J. C., Barnard, J. C., Arnott, W. P., Cary, R., Coulter, R., Fast, J. D., Kassianov, E. I., Kleinman, L., Laulainen, N. S., Martin, T., Paredes-Miranda, G., Pekour, M. S., Shaw, W. J., Smith, D. F., Springston, S. R., and Yu, X.-Y.: The T1-T2 study: evolution of aerosol properties downwind of Mexico City, Atmos. Chem. Phys., 7, 1585–1598, 2007.; Dua, S. K., Hopke, P. K., and Raunemaa, T.: Hygroscopicity of Diesel Aerosols, Water, Air, Soil Pollut., 112, 247–257, 1999.; Gaffney, J. S., Marley, N. A., Cunningham, M. M., and Doskey, P. V.: Measurements of Peroxyacyl Nitrates (PANs) in Mexico City: Implications for Megacity Air Quality Impacts on Regio


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