Carbon dioxide Azerbaijan 1 CO2 emissions 1 Carbon 1 Cointegration 1 EKC hypothesis 1 Eco-friendly 1 Economic analysis 1 Economic and social effects 1 Economic growth 1 Economic growths 1 Energy efficiency 1 Environmental protection 1 Environmentally friendly gas mixture 1 Environmentally friendly gas mixtures 1 Gas development 1 Gas emissions 1 Gas systems 1 Gases mixture 1 Global warming 1 Global warming potential 1 Greenhouse gas emissions 1 Greenhouse gases 1 Greenhouses gas 1 HFO 1 Hydrofluoroolefin 1 Irradiation 1 Particle size analysis 1 Particle spectrometers 1 Resistive Plate Chamber 1