Anions in aqueous precipitation
This chapter discusses the determination of anions in aqueous precipitation including rain, snow, fog and aerosols.
Aqueous precipitation from the atmosphere occurs in many forms notably rain water, dew, mists, snow, ice and hail. Anions, cations and indeed, organic substances can occur in aqueous precipitation and measurements of these are of great interest in areas such as acid rain studies, radioactive fallout from bomb tests and nuclear accidents and of course, general pollution of the atmosphere, hence of the rivers and oceans. A growing volume of measurements have been carried out in this field and these are discussed below under two headings: rain water and snow/ice.