BOUNDARY-LAYER OZONE IN CROATIA

An analysis of ozone distribution in the atmospheric boundary layer ba sed on monitoring data from two TOR stations in Croatia is given. The levels were found to be generally higher than expected for the contine ntal background. At the Puntijarka station, which can be taken as repr esentative for the region, high values are mainly associated with tran sport from the west. The RBI station represents an urban site with occ asional photosmog situations. Short term measurements along the Adriat ic coast have shown that there is a negative north to south gradient i n ozone concentration as predicted by model calculations, but also tha t some local photochemical production takes place even at the remote A driatic island far from pollution sources.