The informativeness of measurements of outgoing reflected and scattered solar radiation was analysed with the use of multiband spectrometer GOME in ultraviolet, visible, and near-infrared spectral ranges. GOME measurements are shown to allow the vertical profile of O₃ content to be measured with an error of 5-15%. GOME spectrometer allows also the determination of the content of total OClO, BrO, and SO₂, especially under the conditions of ozone holes.