Prediction of the wash-off of traffic related semi- and non-volatile organic compounds from urban roads under climate change influenced rainfall characteristics

► A robust tool based on orthogonal rotatable central composite design and factor analysis has been presented. ► The wash-off of traffic generated SVOCs and NVOCs from urban roads is primarily caused by the intensity and durations of low to moderate rain events. ► The model is capable to predict concentrations of seventeen SVOCs and NVOCs in particulate fractions >300-1 μm.