Impact of meteorological factors on ozone concentrations modelled by time series analysis and multivariate statistical methods

The ozone concentrations in Slavonia (eastern part of Croatia) were measured for the first time in spring–summer season 2002. Fourier analysis, principal components analysis (PCA) and multiple linear regression analysis (MLR) were applied to these time series. Weekday effect in spring and weekend effect in summer period were observed. Correlation with meteorological parameters is strongly emphasized from 10 a.m.–3 p.m. MLR models showed that variations in ozone concentrations are attributed to variation of few meteorological parameters with R2 ≈ 0.7 and 0.8 in the spring and summer, respectively.