Ozone concentration in ground-level air layer in north-western Poland - The role of meteorological elements

Abstract

Ozone concentration in ground-level air layer in north-western Poland - The role of meteorological elements The research aimed at recognising time structure and variability of tropospheric ozone as a function of daytime and nocturnal meteorological conditions, particularly in the spring season (March-May), as well as finding a weather cluster at which the highest O3 concentration occurs. Ozone concentrations recorded every hour during the two years and data on five other meteorological elements: total solar radiation, air temperature, relative air humidity, atmospheric pressure, wind direction and speed provided the input data for the analysis. The data were collected at Widuchowa weather station, north-western Poland, near the Polish-German border. The highest ozone concentration was observed at daytime day, under conditions of eastern wind, low relative air humidity (about 35%), high values of total solar radiation (about 209 W·m-2), air temperature (17.0°C), atmospheric pressure (1016 hPa) and high wind speed (2.7 m·s-1). It is concluded that the magnitude of tropospheric ozone concentration recorded at Widuchowa is influenced by gaseous pollutants originating not only from the territory of Poland but also from Germany.