Abstract
Obervation of atmospheric environment at Mt. Tateyama and over Toyama Prefecture using a helicopter has been performed. Measrements of trace gases, aerosol particles, fog and precipitation chemistry were made. High concentrations of trans-boundary pollutants and Kosa particles have frequentry been detected.Fog water at Mt. Tateyama was highly acidified during the air mass was transported from the anthropogenic regions in the Asian continent. Acidic fogs contained high concentraions of sulfate and peroxides.Kosa particles were transported not only in spring but also in summer and autumn. The amounts of Kosa particles from the Asian continent during autumn seassons showed year to year variabilities.Measurements of peroxides in the upper atmosphere using a helicopter were performed in the summer and spring. The concentrations of atmospheric peroxides at high altitudes were higher than those near the ground. The concentrations of peroxides in the summer of 2013 were higher than those in the summer of 2012. These results were due to air pollutants might have been long-range transported from the Asian continent.
