Abstract
Results of field measurements carried out from June 15 to December 31, 1995, in Córdoba city (Argentina) are presented. During this field campaign, surface ozone mixing ratios were generally around 30–35 ppb (afternoon peak). However, during the first week of September, days with excessive ozone values close to 100 ppb were found. These elevated ozone concentrations appeared together with high values of NOx, CO, PM10, and an unusual meteorological situation for this time of the year. These results made this episode an interesting one to be studied in more detail. In this work, we used chemical and meteorological data to trace the region from where the assumed precursors were emitted and we identified possible source characteristics.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Andreae, M. O., Browell, E. V. Garstang, M. Gregory, G. L., Harris, R. C., Hill, G. F., Jacob, D. J., Pereira, M. C., Sachse, G. W., Setzer, A. W., Silva Días, P. L., Talbot, R. W., Torres, A. L., and Wotsy, S. C., 1988: Biomass-burning emissions and associated haze layers over Amazona, J. Geophys. Res. 93, 1509-1527.
Browell, E. V., Gregory, G. L., Harris R. C., and Kirchhoff, V. W. J. H., 1988: Tropospheric ozone and aerosol distribution across the Amazon basin, J. Geophys. Res. 95, 18473-18488.
Cheng, L., McDonal, K. M., Angle, R. P., and Sandhu, H. S., 1998: Forest fire enhanced photochemical air pollution. A case study, Atmos. Environ. 32, 673-681.
Crutzen, P. J., Heidt, L. E., Krasnec, J. P., Pollok, W. H., and Seiler, W., 1979: Biomass burning as a source of atmospheric gases CO, H2, N2O, CH3Cl, and COS, Nature 282, 253-256.
Delany, A. C., Haagenson, P., Walters, S., Wartburg, A. F., and Crutzen, P. J., 1985: Photochemically produced ozone in the emission of large scale tropical vegetation fires, J. Geophys. Res. 90, 2425-2429.
Evans, L. F., Weeks, I. A., Eccleston, A. J., and Packham, D. R., 1977: Photochemical ozone in smoke from prescribed fires of forests, Environ. Sci. Technol. 11, 896-900.
Helas, G., Lobert, J., Scharffe, D., Schäfer, L., Goldammer, J., Baudet, J., Ahoua, B., Ajavon, A. L., Lacaux, J.P., Delmas, R., and Andreae, M. O., 1995: Ozone production due to emissions from vegetation burning, J. Atmos. Chem. 22, 163-174.
Kirchhoff, V. W. J. H. and Marinho, E. V. A., 1994: Layer enhancements of tropospheric ozone in regions of biomass burning, Atmos. Environ. 28, 69-74.
Kirchhoff, V. W. J. H., Nakamura, Y., Marinho, E. V. A., and Mariano, M. N., 1992: Excess ozone productions in Amazonia from large scale burning, J. Atmos. Terr. Phys. 54, 583-588.
National Research Council, 1991. Rethinking the Ozone Problem in Urban and Regional Air Pollution, National Academy Press, Washington, D. C.
Mulholland, M. and Seinfeld, J. H., 1995: Inverse air pollution modelling of urban-scale carbon monoxide emissions, Atmos. Environ. 29, 497-516.
Olcese, L. E. and Toselli, B.M., 1997: Effects of meteorology and ambient measurements of primary pollutants in Córdoba City, Argentina, Meteorol. Atmos. Phys. 62, 241-248.
Olcese, L. E. and Toselli, B. M., 1998: Statistical analysis of PM10 measurements in Córdoba City, Argentina, Meteorol. Atmos. Phys. 66,123-130.
Seinfeld, J. H., 1986: Atmospheric Chemistry and Physics of Air Pollution, John Wiley & Sons: New York, p. 138.
Stein, A. F. and Toselli, B. M., 1996: Street level air pollution in Cordoba City, Argentina, Atmos. Environ. 30, 3491-3495.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Olcese, L.E., Toselli, B.M. Unexpected High Levels of Ozone Measured in Córdoba, Argentina. Journal of Atmospheric Chemistry 31, 269–279 (1998). https://doi.org/10.1023/A:1006014818657
Issue Date:
DOI: https://doi.org/10.1023/A:1006014818657