Long-term trends of pollutant concentrations in selected sites in Silesian Voivodeship

The assessment of the air pollution quality in selected sites of Silesian Voivodeship was presented in this paper. The evaluation based on the sets of long-term data, recorded by the state air monitoring network. Concentrations of main air pollutants such as PM10, O-3, CO, SO2, NO2, NO were considered. The basis for the calculations were 12-year time series of hourly concentrations. Using this data, the monthly averages of pollutant concentrations were calculated. Long-time trends of concentration changes were determined for each pollutant separately. Based on the analysis of trends, risks that may arise in the future were identified.