Vertical profile of H2SO4 vapor at 70-110Â km on Venus and some related problems

► Vertical profiles of H2SO4 concentration and densities of H2SO4 vapor at 70-110 km on Venus. ► H2SO4 vapor cannot be a high-altitude source of SOX on Venus. ► Haze extinction may contaminate the UV observations of SO2 at 90-110 km.