Temperature Dependence of Atmospheric NO₃ Loss Frequency

A new indicator with temperature dependence of the NO₃ loss frequency, was developed to study the contribution of NO₃ to the oxidation of monoterpenes and NO_x removal in the atmosphere. The new indicator arises from the temperature dependence of kinetic constant. The new indicator was applied to data of observation based on differential optical absorp-tion spectroscopy system on the outskirts of Hefei, China. According to the findings, the contribution of monoterpenes to the loss of NO₃ was 70%～80%.