In the future the treatment of exhaust gases, exhaust air and harmful gases will become increasingly central to our industrial production. The aim of the project is the determination of the oxygen radical distribution in plasmas. Oxides are end products and intermediates in the purification of critical gases. In gas chemistry, oxides such as CO2, NO2, NO and H2O are generally dissociated into their components at high temperatures. The reaction channels can be specifically controlled in plasmas. The most important criterion for effective volume chemistry is the control of oxygen radicals.