A simple method for modulation of aerosol particle formation in Earth's atmosphere is suggested. In this way a crystal of natural mineral is dispersed under ambient air. Interactions between the surface of such obtained TiO2 and halogen-containing organic compounds, acetone and CO, enriched by isotope 13CO, under darkness and irradiation were investigated. The mechanisms of investigation processes are suggested.
tropospheric photochemistry, TiO2 microcrystal aerosol, photoadsorption, photocatalysis, organic compounds