A study of the acidity in the precipitation in Southwestern Norway

Using 6-hourly samples of precipitation at Lista, the influence of local and remote sources of acid precipitation in Southwestern Norway is discussed. The distribution of pH values for different wind directions indicates that the acidity in this area is hardly caused by local sources. A study of the trajectories of the rainbearing airmasses shows that the highest acidity in Southwestern Norway occurs in airmasses passing over the major industrial areas in Central Europe and the United Kingdom. DOI: 10.1111/j.2153-3490.1973.tb00613.x