Concentrations of ionic constituents, formaldehyde and hydrogen peroxide in snow cover at Murododaira, Mt. Tateyama

Abstract

The concentrations of formaldehyde (FA) and hydrogen peroxide (H2O2) as well as ionic constituents in the snow cover at Murododaira (altitude, 2450m), Mt. Tateyama were measured in the spring of 2010. Several peaks of nssCa2+ and Na+ were detected, and the dating of the high nssCa2+ layers was performed by Kosa data. In the case of the high nssCa2+ and nssSO42-, air mass was transported from arid areas and it passed over the industrial regions of the Asian continent. The concentrations of FA and H2O2 in the snow cover were much lower than those in the rain water at a plain site during warm months. The H2O2 concentrations were higher in the new snow than in the lower snow layers. The post depositional modification of H2O2 may be more significant than that of FA. The concentrations of FA were correlated with the anthropogenic components in the snow cover.