Ozone (O3) 1 : Occurs in small concentrations in the atmosphere. It is produced by the action of ultraviolet radiation on air or oxygen and by electric sparks in air or oxygen. It is a powerful oxidizing agent
H. J. Porter (Chairman - Technical Committee), Dictionary of Fire Technology, The Institution of Fire Engineers, The Victory Press (Leicester) Ltd. 1979 UK. (Fr Tech - Brit) {81}