The station of Turin, located at the border of the urban area, contains a complete set of conventional and remote-sensing instruments useful to determine the boundary and surface layers characteristics in real time. This station constitutes an important resource to evaluate the quality of the air and a useful instrument for planning initiatives for the pollution control. The stagnation of the atmosphere in its lower layers, typical in the Piedmont plain area and well correlated with the high occurrence of wind calms, is a typical phenomenon is favoured by the particular conformation of the subalpine area. At local level, the hills surrounding Turin city act as barriers, contributing to the persistence of fog and urban pollution. The possibility to diagnose in real time the presence of stratified atmosphere can be enhanced if the thermal (RASS) and wind (SODAR) vertical profiles in the PBL are available. In this presentation, a preliminary analysis of some data acquired at the station of Turin, combined with some pollutant data acquired by the Regional Environmental Agency (ARPA) during the Intense Observation Period of the Mesoscale Alpine Programme (MAP-IOP) is presented.