八方尾根におけるエアロゾルの長期観測

概要

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Mt. Happo is located in the Japan Alps. The observation of aerosol has been conducted around the Happo-ike mountain lodge and acid rain monitoring station, which is one of the monitoring sites in Acid Deposition Monitoring Network in East Asia (EANET) , at an altitude of 1,850 m. Effects of long range transportation of air pollutants from sources in East Asia were investigated there. In this paper, we describe the characteristics of the monitoring points and the history of various observations together with a part of observational results.Monitoring of ozone concentration first started at the mountain lodge in 1985 and other observations such as aerosol, acid deposition, gases and meteorological parameters followed. Airborne particulate matters were collected by a low-volume air sampler from 1990 and after 1997 a tape air sampler was added. Intensive observations collaborated with National Institute for Environmental Studies were conducted four times in the period from 1991 to 1995, and the behavior of acidic and oxidizing substances were investigated. Volcanic gases, from Miyakejima volcano eruptions, were observed in 2000.
日本エアロゾル学会の論文