Abstract
An electrochemical apparatus for the measurement of atmospheric ozone which was originally developed by A. Ehmert was constructed, and practical observation with it were carried out three times a day at the summit of Mt. Fuji from 13th to 18th of August 1953.
According to the results of observation, the ozone concentration increases anomalously before the occurrence of St. Elmo's Fire. An notable decrease which is presumably related with the passage of frontal zone was also observed.
Ehmert's method of determination of atmospheric ozone is criticized from the viewpoint of meteorological observation.
