TY JOUR TI DATA ON FREQUENCIES OF ACCIDENT EVENTS AT HYDROGEN GAS PRODUCTION AND HANDLING FACILITIES KW statistics KW hydrogen gas production and handling facilities KW frequencies KW accident rate KW risk assessment KW equipment KW industry KW knock-on effect JO Problems of risk management in the technosphere AU Timoshenko, A.L. AU Samigullin, G.K. AU Rebezov, S.A. PY 2024 IS 2024 PB Saint-Petersburg University of State Fire Service of Emercom of Russia