Estimation of Excess Air in groundwater using dissolved Nitrogen and Argon

Kazuyoshi Asai; Kazumi Asai

Presentation information

[J] Poster

A (Atmospheric and Hydrospheric Sciences ) » A-HW Hydrology & Water Environment

[A-HW34] Isotope Hydrology 2020

convener:Masaya Yasuhara(Rissho Univ.), Kohei Kazahaya(Geological Survey of Japan, AIST), Shinji Ohsawa(Institute for Geothermal Sciences, Graduate School of Science, Kyoto University), Kazuyoshi Asai(Geo Science Laboratory)

[AHW34-P04] Estimation of Excess Air in groundwater using dissolved Nitrogen and Argon

Kazuyoshi Asai¹, *Kazumi Asai¹ (1.Chikyukagakukenkyusho inc)

Keywords:Excess air, groundwater, Nitrogen, Argon, SF6 age

To evaluate distribution of the excess air is vital for groundwater dating using SF6. For the estimation of excess air value, we used dissolved Nitrogen and Argon data. Water samples were collected from 49 springs and 22 wells in the Chubu region. We will present estimated excess air values and discuss its impact for SF₆ groundwater age.