ИСТИНА

The influence of wind velocity in the atmospheric boundary layer (ABL) on the ground concentrations of main air pollutants has been analyzed on a base of long-term sodar sounding in Moscow. As it is shown the most of minor atmospheric gases and even CO2 demonstrate monotonously decreasing functions of the wind velocity both in the ground air layer and in Ekman layer above. However, ozone due to its specific (growth with a height in the lowest air layer close to the ground) has opposite dependence so that as a rule the higher is wind velocity the higher is the ground concentration of O3. One more specific feature is function of SO2 concentrations of the wind velocity which is non-monotonous and demonstrates intermediate maximum because this gas, unlike most other pollutants, is emitted mainly from high sources.