Japan Geoscience Union Meeting 2023

Presentation information

Print

[J] Online Poster

A (Atmospheric and Hydrospheric Sciences ) » A-AS Atmospheric Sciences, Meteorology & Atmospheric Environment

[A-AS07] Atmospheric Chemistry

Tue. May 23, 2023 9:00 AM - 10:30 AM Online Poster Zoom Room (3) (Online Poster)

convener:Yosuke Sakamoto(Kyoto University Graduate School of Global Environmental Studies), Risa Uchida(Japan Automobile Research Institute), Shigeyuki Ishidoya(Advanced Industrial Science and Technology), Yoko Iwamoto(Graduate School of Integrated Sciences for Life, Hiroshima University)

On-site poster schedule(2023/5/22 17:15-18:45)

9:00 AM - 10:30 AM

[AAS07-P02] Fluctuation of atmospheric mercury concentration observed at Syowa station, Antarctica during January 2022

*Koyomi Nakazawa1, Osamu Nagafuchi2, Satoshi Imura3, Tomoaki Watanabe4, Akihiro Mitsui4 (1.Toyama Prefectural University, 2.Fukuoka Institute of Technology, 3.National Institute of Polar Research, 4.Nippon Instruments Corporation)

Keywords:Antarctica, atmospheric mercury, Syowa station

In order to clarify the dynamics of atmospheric mercury concentration in Antarctica, we have installed the atmospheric mercury monitor (AM-5, Nippon Instruments, Co. Ltd) to the Syowa station during January to early February, 2022. Syowa station is located at coastal area. The average concentration of Hg (0) were 1.01±0.21 ng/m3 during our observation period. Highest concentration (1.99 ng/m3) were observed when the low presser system approaches to the Syowa station.
The atmospheric mercury concentration increases during the noon and decreased at night time. In this presentation, we will discuss the fluctuation factor of atmospheric mercury in this period.