Abstract
As a part of the FOS/DECAFE experiment, aerosol particles emitted during prescribed savanna fires were collected in January 1991 at Lamto (Ivory Coast), either close to the emission or in ambient air. Analytical transmission electron microscopy pointed out the presence of sub-micrometer soots, salt condensates, vegetation relicts and soil derived particles. The samples were also analyzed for their total particulate matter (TPM) content and elemental composition by PIXE or XRF. At the emission, high concentrations of soil derived elements (Fe and Al) pointed out an intense remobilization process during the fires. Biomass burning emissions contributed to more than 90% of the measured concentrations, of P, Cl, S, K, Cu and Zn, which were found primarily in the fine fraction with the exception of P. Near the emission, K was mainly present as KCl, evolving to K2SO4 in the ambient samples. Trace elements emission factors were obtained for the first time for the African savanna burning and their annual emissions were estimated: our median K emission factor (0.78 g/kg of C) is higher than estimates for other ecosystems (0.2–0.58 g/kg of C); Zn emissions (0.008 Tg/year) account for 4 to 11% of the global anthropogenic emissions.
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Aloupogiannis, P., 1988, Étude théorique et expérimentale des effets de matrice en analyse par emission de rayons X induite par particules chargées (PIXE), PhD thesis, Université Paris VII.
Andreae, M. O., 1983, Soot carbon and excess fine potassium: Long-range transport of combustion-derived aerosols,Science 220, 1148–1151.
Andreae, M. O., 1991, Biomass burning: Its history, use, and distribution and its impact on environmental quality and global climate, in J. S. Levine (ed.),Global Biomass Burning: Atmospheric, Climatic and Biospheric Implications, MIT Press, Cambridge, MA, pp. 3–21.
Cachier, H., Buat-Ménard, P., Fontugne, M., and Rancher, J., 1985, Source terms and source strengths of the carbonaceous aerosol in the tropics,J. Atmos. Chem. 3, 469–489.
Cachier, H., Ducret, J., Brémont, M. P., Gaudichet, A., Yoboue, V., Lacaux, J. P., and Baudet, J., 1991, Characterization of biomass burning aerosols in a savanna region of the Ivory Coast, in J. S. Levine (ed.),Global Biomass Burning: Atmospheric, Climatic and Biospheric Implications, MIT Press, Cambridge, MA, pp. 174–180.
Cachier, H., 1992, Biomass burning sources, inEncyclopedia of Earth System Science Vol. 1, Academic Press, London, pp. 377–385.
Cachier, H., Liousse, C., Buat-Menard, P., and Gaudichet, A., 1995, Particulate content of savanna fire emissions,J. Atmos. Chem. 22, 123–148 (this issue).
Cofer, W. R. III, Levine, J. S., Sebacher, D. I., Winstead, E. L., Riggin, P. J., Brass, J. A., and Ambrosia, V. G., 1988, Particulate emissions from a mid-latitude prescribed chaparral fire,J. Geophys. Res. 93D5, 5207–5212.
Crozat, G., 1978, L'aérosol atmosphérique en milieu naturel: étude des différentes sources de potassium en Afrique de l'Ouest (Côte d'Ivoire), PhD Thesis, Université Paul Sabatier, Toulouse.
Crutzen, P. J. and Andreae, M. O., 1990, Biomass burning in the tropics: impact on atmospheric chemistry and biogeochemical cycles,Science 250, 1669–1678.
Delmas, R. A., Loudjani, P., Podaire, A., and Menaut, J.-C., 1991, Biomass burning in Africa, an assessment of annually burned biomass, in J. S. Levine (ed.),Global Biomass Burning: Atmospheric, Climatic and Biospheric Implications, MIT Press, Cambridge, MA, pp. 126–132.
Desalmand, F., Serpolay, R., and Podzimek, J., 1985, Some specific features of the aerosol particle concentrations during the dry season and during a bushfire event in West Africa,Atmos. Environ. 19, 1535–1543.
Duce, R. A., Arimoto, R., Ray, B. J., Unni, C. K., and Harder, P. J., 1983, Atmospheric trace elements at Enewetak Atoll: 1. Concentrations, sources, and temporal variability,J. Geophys. Res. 88C9, 5321–5342.
Erickson, D. J. III, and Duce, R. A., 1988, On the global flux of atmospheric sea salt,J. Geophys. Res. 93C11, 14079–14088.
Elichegaray, C., Dutot, A., Grubis, B., and Vié le Sage, R., 1981, Dosage par spectrométrie de fluorescence X des aérosols atmosphériques: détermination des facteurs de correction,Analusis 9, 492–497.
Feugier, A. and Gateau, P., 1989, Formation of particulate pollutants in hydrocarbon combustion,Pollution Atmosphérique 122, 184–189.
Gaudichet, A., Petit, J. R., Lefèvre, R., and Lorius, C., 1986, An investigation by analytical transmission electron microscopy of individual insoluble microparticles from Antarctic (Dome C) ice core samples,Tellus 38B, 250–261.
Gomes, L., 1990, Approche géochimique du soulèvement des aérosols à l'interface sol-atmosphère en zone désertique, PhD thesis, Université Paris 7.
Hallet, J., Hudson, J. G., and Rogers, C. F., 1989, Characterization of combustion aerosols for haze and cloud formation,Aerosol Sci. Technol. 10, 70–83.
John, W., Hering, S., Reischel, G., and Sasaki, G., 1983, Characteristics of Nuclepore filters with large pore size — II: Filtration properties,Atmos. Environ. 17, 373–382.
Losno, R., Bergametti, G., and Mouvier, G., 1987, Determination of optimal conditions for atmospheric aerosol analysis by X-ray fluorescence,Environ. Technol. Lett. 8, 77–86.
Losno, R., 1989, Chimie des éléments minéraux en trace dans les pluies méditerranéenes, PhD Thesis, Université Paris VII.
Maenhaut, W. and Raemdonck, H., 1984, Accurate calibration of a Si(Li) detector for PIXE analysis,Nucl. Instrum. Methods 229, 123–136.
Maenhaut, W., Raemdonck, H., and Andreae, M. O., 1987, PIXE analysis of marine aerosol samples: Accuracy and artifacts,Nucl. Instrum. Methods B22, 248–253.
Mason, B., 1966,Principles of Geochemistry, 3rd edn., Wiley, New York.
Menaut, J. C., Abbadie, L., Lavenu, F., Loudjani, P., and Podaire, A., 1991, Biomass burning in West African savannas, in J. S. Levine (ed.),Global Biomass Burning: Atmospheric, Climatic and Biospheric Implications, MIT Press, Cambridge, MA, pp. 134–142.
Nriagu, J. O. and Pacyna, J. M., 1988, Quantitative assessment of worldwide contamination of air, water and soils by Trace Metals,Nature 333, 134–139.
Parker, R. D., Buzzard, G. H., Dzubay, T. G., and Bell, J. P., 1977, A two stage respirable aerosol sampler using Nuclepore filters in series,Atmos. Environ. 11, 617–621.
Quisefit, J. P., 1988, Physico-Chimie de l'aérosol volcanique. Modélisation thermochimique du refroidissement des émanations de haute température, PhD thesis, Université Paris VII.
Quisefit, J. P., Toutain, J. P., Bergametti, G., Javoy, M., Cheynet, B., and Person, A., 1989, Evolution versus cooling of gaseous volcanic emissions from MOMOTOMBO volcano, Nicaragua: Thermodynamical model and observations,Geochim. Cosmochim. Acta 53, 2591–2608.
Radke, L. F., Hegg, D. A., Lyons, J. H., Brock, C. A., Hobbs, P. V., Weiss, R., and Rasmussen, R., 1988, Airborne measurements on smokes from biomass burning, in P. V. Hobbs and M. P. McCormick (eds.),Aerosols and Climate, Deepak, Hampton, VA, pp. 411–422.
Taylor, S. R., 1964, Abundance of chemical elements in the continental crust: a new table,Geochim. Cosmochim. Acta 28, 1273–1285.
Toutain, J. P., 1987, Contribution à l'étude des sublimés volcaniques. Minéralogie, géochimie, thermodynamiques. Exemples du Momotombo, du Piton de la Fournaise et du Poas, PhD thesis, Université Paris VI.
Ward, D. E., 1986, Field scale measurements of emission from open fires, Technical paper presented at the Defense Nuclear Agency Global Effects Review, Defense Nuclear Agency, Washington, D.C.
Woods, D. C., Chuan, R. L., Cofer, W. R. III, and Levine, J. S., 1991, Aerosol characterization in smoke plumes from a wetlands fire, in J. S. Levine (ed.),Global Biomass Burning: Atmospheric, Climatic and Biospheric Implications, MIT Press, Cambridge, MA, pp. 240–244.
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Gaudichet, A., Echalar, F., Chatenet, B. et al. Trace elements in tropical African savanna biomass burning aerosols. J Atmos Chem 22, 19–39 (1995). https://doi.org/10.1007/BF00708179
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DOI: https://doi.org/10.1007/BF00708179