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Variations in the acid content of rain water in the course of a single precipitation

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Abstract

The major acid components in the rain water collected during five different rainfall events in July and August 1977, were found to be a strong acid, the weak acid NH su+in4 and dissolved CO2 from the atmosphere. Variations in their concentrations were determined as a function of time in the course of each of the rainfall events. Two experimental methods were used in this investigation, a microtitrim etric method and a coulometric method, and the data were analyzed by the use of modified Gran functions. Both methods gave the same results. The most significant observation was that the strong acid concentration increased from very low values to a maximum and then decreased in the course of a single rainfall event.

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Seymour, M.D., Schubert, S.A., Wesley Clayton, J. et al. Variations in the acid content of rain water in the course of a single precipitation. Water Air Soil Pollut 10, 147–161 (1978). https://doi.org/10.1007/BF00464711

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