On the Content of Hydrogen Peroxide of the Atmospheric Precipitates

Abstract

From April 1948 to March 1949, the content of the hydrogen peroxide of the rain and snow waters in Kanagawa Prefecture was chemically estimated. From the analytical data, the author obtained the following results. 1. Max. 0.86mg/l, min. 0.08mg/l. The yearly average; 0.52mg/l. 2. H₂O₂ content is larger in rain water than in snow water. 3. In the annual variation a maximum occurs in June and a minimum in January. There is a parallelism between the yearly variation of the hydrogen peroxide and the ultra-violet ray in the solar radiation. This suggests that the ultra-violet ray produces the hydrogen peroxide in the presence of water particles suspended in the atmosphere.