In this article the studies on ion concentrations outdoor ambient are presented. First of all the classification of the zones with different air ion concentrations (urban centers and suburb areas) was done. The classification of the areas is based on the results of the measurements of the air ion concentrations which are carried out in the territories of northern Albania and some regions of Montenegro.
At the end there are correlated the values of ion concentration in the outdoor ambient to the principal factors like the presence of aerosols and meteorological parameters (temperature, atmospheric pressure, relative humidity, etc.).
atmospheric ions, concentration variations, urban areas