Petersburg State University (from 1990). In 1986 he has completed his PhD from SPBU “Laboratory studies of aeronomical reactions with participation of negative ions, excited oxygen atoms and molecules” which was been based on his investigation of processes in the glow discharge oxygen plasma. His main fields are the Atmospheric photochemistry in the MLT region, the Sensitivity and uncertainty study of complex photochemical systems and the Retrieval of ozone and atomic oxygen in the MLT. He has published more than 20 papers in reputed journals.