Measurements of pH, and chemical analyses of rain-, snow-, and fog-water

Abstract

Since 1957 more than 200 samples of rain water have been analysed at the Meteorological Observatory of Dresden-Wahnsdorf (51,1° N, 13,7° E). At four mountain summit stations and one coastal station fog water was sampled and analysed. The yearly mean of the pH has remained constant since 1958, while i***n western Europe Jessel found a decrease in the pH. There are no differences of the pH between summer and winter and between shower and rain. There are no differences in the concentration of chemical traces between shower and rain, the seasonal difference is unimportant. The concentration of traces including the artifical ? radioactivity in fog water is larger about one order of magnitude. It is possible to estimate approximately the trace content of one cubicmeter of air from the trace concentration of the fog water and the water content of the fog, if the fog persists for a long time. DOI: 10.1111/j.2153-3490.1966.tb00236.x