Chemical Investigation on the Precipitations at Tokio and its Suburbs

Abstract

The chemical analyses of the rain water were made through a year of 1934 at four stations in Tôkio and its suburbs. At the Central Meteorological Observatory situated in the central part of Tôkio, the rain-water is remarkably soiled by a large quantity of ammonium etc., especially in the daytime. At the both places, Narimune and Ogikubo situating in the suburbs of city of Tôkio, the quantity of ammonium and nitrate is greatly decreased and the difference between the amounts of daytime and night is not almost appeared in the observed data.