Abstract
Ozone (O3) is an important constituent of the Earth atmosphere, either stratosphere, where it has a beneficial role to protect Earth's surface from harmful UV-B radiation, or troposphere where it is considered an air pollutant. We investigated the ozone destruction on solid particles of natural or anthropogenic origin as: silica-gel, pollen, coal fly ash, titanium dioxide with different specific surface (s) and sodium halides (NaCl, NaBr and NaI). The experiments were conducted in a fluidized bed reactor with elevated ambient concentrations of O3 (100 ppb) employed. The results indicate that the destruction of O3 depends upon: sample quantity (silica-gel with equal s), sample surface (TiO2 with different s) and chemical composition (coal fly ash comparative to wood ash). Interesting results were obtained with sodium halides: no effect on O3 concentrations was detected with NaCl, NaBr shows a certain destruction, while NaI removes completely O3 from the air stream. In the experiments with NaI doped NaCl, the destruction of O3 was dependent on NaI quantity.
Similar content being viewed by others
References
Alebic-Juretic, A.: 1994, Water,Air and Soil Pollut., 78, 343–357.
Alebic-Juretic, A., Cvitas, T. and Klasinc, L.: 1990, Environ. Sci. Technol., 24, 62–66
Alebic-Juretic, A., Cvitas, T. and Klasinc, L.: 1992, Ber.Bunsenges. Phys. Chem., 96, 493–495
Guesten, H.: 1986, Chemistry of Multiphase Atmospheric Systems, W. Jaeschke Ed., Springer-Verlag, Berlin-Heidelberg, 567pp
Guesten, H., Heinrich, G., Weppner, J., Abdel-Aal, M., Abdel-Hay, F.M., Ramadan, A.B., Tawfik, F.S., Ahmed, D.M., Hassan, G.K.Y., Cvitas, T., Jeftic, J. and Klasinc, L.: 1994, Sci. Total. Environ., 155, 285–295
Hoffman, R.V., Eiceman, G.A., Long, Y-T., Collins, M.C. and Lu, M-Q.: 1990, Environ. Sci. Technol., 24, 1635–1641
Molina, M.: 1991, Atmos. Environ., 25A, 2535–2537
Ohta, S. and Okita, T.: 1990, Atmos. Environ., 24A, 815–822
Toon, O.B. and Turco, P.P.: 1991, Le Science, No 276, 46–52 (in Italian)
Zetzsch, C. and Behnke, W.: 1992, Ber. Bunsenges. Phys. Chem., 96, 488–493
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Alebic-Juretic, A., Cvitas, T. & Klasinc, L. Ozone Destruction on Solid Particles. Environ Monit Assess 44, 241–247 (1997). https://doi.org/10.1023/A:1005788624410
Issue Date:
DOI: https://doi.org/10.1023/A:1005788624410