Japan Geoscience Union Meeting 2025

Presentation information

[J] Poster

O (Public ) » Public

[O-11] Senior high school student poster presentations

Sun. May 25, 2025 1:45 PM - 3:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

convener:Tatsuhiko Hara(International Institute of Seismology and Earthquake Engineering, Building Research Institute), Keiko Konya(Japan Agency for Marine-Earth Science and Technology), Chieko Suzuki(Japan Agency for Marine-Earth Science and Technology), RYO NAKANISHI(National Institute of Advanced Industrial Science and Technology)


1:45 PM - 3:15 PM

[O11-P105] Determination of 222Rn levels in groundwater

*Minori Ikuma1, China Ohara1, Yumi Imai1, Kouta Ando1, Yuri Sasamoto1 (1.Tokyo Gakugei University Senior High School)

Keywords:radioactive decay, groundwater, geology, activated carbon, Radon

In this study, we aim to improve the reproducibility and accuracy of Radon-222 (²²²Rn) measurements in groundwater,following the previous research. We focus on identifying environmental factors that may influence the concentration of ²²²Rn.
From our experiments, we observed that the concentration of ²²²Rn varied at the same location on different days.
This suggests that environmental factors such as precipitation, air temperature, and water temperature might play a role. Although our results did not show a clear correlation with precipitation, but they do suggest that environmental conditions could affect ²²²Rn levels.
We believe that by collecting more data and conducting further analysis, it may be possible to develop a low-impact method.