TY JOUR TI AIR COMPLEX BASED ON AN UNMANNED AERIAL VEHICLE FOR MEASURING THE CONCENTRATION OF HARMFUL SUBSTANCES: DEVELOPMENT, IMPLEMENTATION AND TESTING KW analysis of air composition in hard-to-reach places KW unmanned aircraft KW gas analyzer KW harmful substances KW concentration KW monitoring of the air environment JO Problems of risk management in the technosphere AU Garelina, S.A. AU Rybakov, A.V. AU Zakharyan, R.A. PY 2025 IS 2025 PB Saint-Petersburg University of State Fire Service of Emercom of Russia