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The aim of this work is to investigate the time evolution of various species concerned in N2/O2/H2O/CO2 mixed gas induced by negative corona discharge at atmospheric pressure. This study takes under consideration thirty totally different chemical species taking part in two hundred selected chemical reactions. The density is analyzed by the continuity equation without the diffusion term. In literature it has generally been emphasized that certain radicals N, O, and O3 influence the NO or NO2 removal. In this work we complete these studies by analyzing others species such as negative ions O!, O!, O! and radicals OH, HO2 presents in N2/O2/H2O/CO2 mixture which they participate in NOx removal. In particular, we tend to analyze the time evolution (10-10 s) of depopulation rate and rate coefficient of bound reactions, beneath completely different reduced electrical fields within the vary of 100-200 Td (1Td=10 V.m). The results show that the environmental condition rate of NO, NO2 and NO3 is well affected by the increase of reduced electric field and concentration.

Numerical Simulation of Influence of Reduced Electric Fields on NOx Removal in N2/O2/H2O/CO2 Mixture